Simplify the expression by combining like terms. 15+12−5+4−7 15 + 12 x - 5 x + 4 y - 7 11+8 11 x y + 8 7+4+8 7 x + 4 y + 8 7+4−7 7 x + 4 y - 7 15+11−7 15 + 11 x y - 7

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what is the image?

no he doesnt because "-16' is negatiive

step-by-step explanation:

hi there!

step-by-step explanation:

a roof pitch is basically for every inch rise there is 12 inches run.

the height of the roof is also known as the rafter.

formula: rafter^2 = rise^2 + run^2

rafter^2 = 5^2 + 12^2

rafter^2 = 25 + 144

rafter ^2 = 169"^2

the height of the roof from the lowest point to the highest point is 169"^2.

hope this : )

-3 degrees

step-by-step explanation: