Answer:
21
Step-by-step explanation:
You add up the two people until u get the number 259
Add them to eliminate x terms
x+3y=-7
<u>-x-7y=19 +</u>
0x-4y=12
-4y=12
divide by -4
y=-3
sub back
x+3y=-7
x+3(-3)=-7
x-9=-7
x=2
(x,y)
(2,-3)
Answer:
f(4) = 2
Step-by-step explanation:
Step 1: Define
f(x) = 2x - 6
g(x) = x²
Step 2: Find g(-2)
g(-2) = (-2)²
g(-2) = 4
Step 3: Find f(g(-2))
f(g(-2)) = f(4)
f(4) = 2(4) - 6
f(4) = 8 - 6
f(4) = 2
B additive inverse property
The best answer is to ship through 7.25$
Thus is cheaper then the coupon