Someone Please help me answer this question.

79

Step-by-step explanation:

<7=4x+1(corresponding angles)

So

3x+4+<7=180(angles on straight line)

So

3x+4+4x+1=180

7x+5=180

7x=180-5

7x=175

x=25

Now

<8=3x+4 (vertical angles)

So.

<8=3(25)+4

=75+4

=79

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40