Please help me. Thanks for your help!!​

10.6 I think

Step-by-step explanation:

we know that the latter is 8ft tall and the angle it makes with the ground is 60. The ground is opposite to the angle the ladder forms with the ground so 8sin60 gives us the length of the building(6.928203230275 or 7). then using pythagorean theorem.a^2+b^2 = c^2 we can do 8^2+ 7^2 = c^2 or 64+49=c^2, 113= c^2. Then to get the value of c you would do the square root of 113 which is 10.63014581273 or 10.6

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