The length of a rectangle is 7ft more than the width the perimeter is 58 ft find the lengeth and width of the rectangle

The perimeter is the sum of the sides.  Let's call the width length w so the length l is w+7

58 = w + w+7 + w + w+7 = 4w+14

44 = 4w

w = 11

l = w + 7 = 18

Length 18 width 11

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.