PL HELP ME THIS DUE RIGHT NOW PL HELP!! 1. Evaluate 8a - b if a = 10 and b = 6

74

38

1000

9000

2. Evaluate expression if a=3 and b=4 . 4b-5a

2

1

-8

8

3. Evaluate Expressions a=3 b=4, 7a + 8b x 2

110

100

80

85

4.Strawberries are $1.95 a pound. Write an expression for p pounds of strawberries.

$1.95+p

$1.95-p

$1.95/p

$1.95p

5. Kenneth has g gumballs. Maggie has 29 fewer gumballs than Kenneth. Choose the expression that shows how many gumballs Maggie has.

g+29

29g

g-29

g ÷ 29

6) 5 + 36 ÷ 2 x 3 - 4

7

55

12

78

7)18 + (6 – 2) × 2

26

29

40

44

8.Expand -3( 2r + 5s).

-6r - 15s

-6r + 15s

-6r - 15

-6r + 2s

9. Expand and simplify 5(2 - 3y)

10 - 15y

10 + 15y

10 - 2y

10 - 3y

10.Factor: 7x + 49y

7(x + 7y)

7(x + y)

can't be factored

7(x + 48y)

11. Factor 6p − 36

6(p − 6)

2(3p − 36)

3(2p − 6)

can't be factored

12. Which expression contains exactly 3 terms?

A. 5 + 6xy

B. 8 + 2y - 5x

C. 9 + 4t

D. 24xy

13. What is the coefficient of x?8 + 5x - y

A. 8

B. 0

C. 5

D. -5

14. Identify the "like terms" in the expression: 2x + 4y - 3x + y - x

A. 2x and 4y and -3x

B. 2x and -3x and x; 4y and y

C. they are all like terms

D. there are no like terms

15. Factor 5x − 25

1. Evaluate 8a - b if a = 10 and b = 6

8×10 - 6 = 80 - 6 = 74

2. Evaluate expression if a=3 and b=4. 4b-5a

4×4 - 5×3 = 16 - 15 = 1

3. Evaluate Expressions a=3 b=4, 7a + 8b x 2

7×3 + 8×4×2 = 21 + 64 = 85

4.Strawberries are $1.95 a pound. Write an expression for p pounds of strawberries.

1 pound is $1.95; 2 pounds is 2×$1.95; 3 pounds is 2×$1.95

So p pounds is p×$1.95 = $1.95p  

5. Kenneth has g gumballs. Maggie has 29 fewer gumballs than Kenneth. Choose the expression that shows how many gumballs Maggie has.

fewer means less than Kenneth; means  we need tu subtract

g - 29

6)

5 + 36 ÷ 2 × 3 - 4  = 5 + 18 × 3 - 4  = 5 + 54 - 4  = 55

7)

18 + (6 – 2) × 2  = 18 + 4×2 = 18 + 8 = 26

8. Expand

-3( 2r + 5s). = -3×2r + (-3)×5s = -6r - 15s

9. Expand and simplify

5(2 - 3y)  = 5×2 + 5×(-3y) = 10 - 15y

10.Factor:

7x + 49y  = 7×x + 7×7y = 7(x + 7y)

11. Factor

6p − 36  = 6×p − 6×6 = 6(p − 6)

12. Which expression contains exactly 3 terms?

B.  8 + 2y - 5x

13. What is the coefficient of x?  8 + 5x - y

8 + 5x - y

C. 5

14. Identify the "like terms" in the expression: 2x + 4y - 3x + y - x

2x and -3x and -x; 4y and y

15. Factor 5x − 25

 5x − 25  = 5×x − 5×5 = 5(x − 5)

we need more info to solve this

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2