Answer:
(3,6)
Step-by-step explanation:
Y=X+3
Y=X2
X+3=2X
X-2X= -3
-x=-3
x=3
then Y=2X
Y=2×3
Y=6
122.5
take 8.75 multiply it by 2 then multiply it by 7 to get your answer 122.5
Ex. 2:1 = 4:2 or 8:4
~Hope this helps!!
d. 188.4 in
i might be wrong so sorry in advance.
f(g(-7))