Answer:
=75
Step-by-step explanation:
15 90=75
x - 4y =12 / -x
-4y = 12 - x // -4
y = -3 1/4 *x
a = 1/4
f(8) = -4
-4 = a*8 + b
-4 = 2 + b / -2
b = -6
so
y = 1/4 *a -6
9
If x/2 = 4.5 then 4.5×2 will get you your answer, 9
12 1/4
convert fractionj into decimals then cvert product into fraction
