Due to renovations at her workplace, Lucía must move from her current office into a temporary office. Her current office is a square room of dimension xx feet. Her temporary office will be a rectangular room with a length 33 feet greater than her current office's length and a width 55 feet less than her current office's width. Which of the following expressions gives the difference between the area, in square feet, of Lucía's current office and the area, in square feet, of Lucía's temporary office? A
2x+152x+15

B
2x-152x−15

C
-2x+15−2x+15

D
-8x-15−8x−15

E
8x+158x+15

answer:

step-by-step explanation:

step-by-step explanation: 4 cause 2+2=4

answer is 12345678900987654321234567890987654321

step-by-step explanation:

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.