The first net because the figure shown is a square pyramid<span />
Answer:
it is -4
Step-by-step explanation:
but the answer is not on there so the answer will be D.
Answer:
x=5
Step-by-step explanation:
F(x)=-3x+21,
f(x)=6 = -3x+21
6 = -3x+21
Subtract 21 from each side
6-21 = -3x+21-21
-15 = -3x
Divide each side by -3
-15/-3 = -3x/-3
5 = x