Correct answer will get brainiest!

for areas

1. (B+7)(a)

2.(c-12)(b)

3.(d+1)(2c)

4. (E-5)(5d)

5. (7e)(5e)

6. (6f+2)(3f)

7.(5g+3)(4g)

For perimeters

1. 2(b+7)+ 2(a)

2. 2(c-12) +2(b)

3. 2(d+1)+2(2c)

4. 2(e-5) +2(5d)

5. 2(5e+7e)

6. 2(6f+2) +2(3f)

7. 2(5g+3) +2(4g)

Step-by-step explanation: I just substituted in the values for the formulas. I hope this helps;)

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s

if she was to only spend a dollar she can get 1lb

step-by-step explanation: