Answer:
use pemdas
Step-by-step explanation:
parentheses exponents multiplacation divide add subtract
{(-1, 5), (1, -5)} This would be your answer
Multiply 8 to 4x and 7 so it looks like 32x +56=56 then you subtract 56 from to 56 which equals zero. Your equation should look like 32x=0. Divide 32 by 0 which equals 0. X=0
12 out of 40 to a percentage:-
(12/40)×100
= 30%
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Hope it helps..</h2>
