There are 864 windows in an 18 story building .If each floor has the same number of windows, how many windows are on each floor.

48windows

Step-by-step explanation:

we know that the whole building contains 864 windows and the building have 18 floors so divide the 864 windows by 18 floors to get 48windows per each floor

angle uzt is congruent to angle tzy. angle vzw is congruent to angle yzx.

(credits to leowren)

step-by-step explanation:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10