Step-by-step explanation:
<u>A.-6-3 = -9</u>
0+4 = 4
(-9,4)
<u>B.3-3 = 0</u>
-4+4 = 0
(0,0)
-2x - 3x = -5x
8 - 4 = 4
-5x + 4
-14.5
Basically, -(7.5+4) is -11.5 and then combine -3 with -11.5 which yields -14.5
You turn it into a percent by multiplying by 100 because a percent means out of a hundred so that's how you do it. You just multiply the decimal by 100.
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