Answer:
17
Step-by-step explanation:
I would just solve them individually for 3 and then add them together. f(x)=6(3)+3 = 21 and g(x)= 3-7= -4
(f+g)(3) = 21-4= 17
Answer:
A
Step-by-step explanation:
b is the range
Answer:
132
Step-by-step explanation:
area of a parallelogram is b*h
(6+5)(12)=132
So. let's say the numbers are "a" and "b"
whatever they're, we know a + b = 56
let's say the larger one is "b", so 3 times the smaller is 3*a or 3a
now, 12 less than that, is 3a - 12
and the larger is that, so b = 3a - 12
so
solve for "a", to see what the smaller one is
what's b? well, b = 56 - a
1) 2l+2w
2)36-2l=2w
3)2w+2w+3+2w+3=36
=6w+6=36
=6w=30
=w=5
the width is 2×5+3=13