Answer:
Option C. 
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor and the ratio of its perimeter is equal to the scale factor too
step 1
Find the width of the rectangle that has a length of 4 feet and a perimeter of 14 feet
The perimeter of a rectangle is equal to

substitute the values and solve for W


step 2
Find the scale factor
Let
z-----> the scale factor
To find the scale factor divide the width of the larger rectangle by the width of the smaller rectangle
so

step 3
Find the perimeter of the larger rectangle
To find the perimeter of the larger rectangle multiply the perimeter of the smaller rectangle by the scale factor
so

Answer: x = -7
Step-by-step explanation:
7 (x + 4) = -21
7x + 28 = -21
Subtract 28 from both sides
7x = -49
Divide both sides by 7
x = -7
Answer: 112, 68, 22, 90
Step-by-step explanation:
This is fairly somewhat easy
since the adjacent side of 1 is 68 degrees
then 1 would be 112 degrees to make it supplementary to 180 degrees
angle 3 is vertical of angle 68
making it 68 degrees
angle 5 is given to be 90 degrees meaning angle 4 is inbetween
angles 3 and 5 so ( 68 and 90 ) that'll add up to 158 meaning angle 4
is 22
angle 1 = 112
angle 3 = 68
angle 4 = 22
angle 5 = 90