1) it costs

so is D
2) the amount of the discount is -30%

so is A
3) -0.3

so is B
4) Chad paid 0.7

so is C
You can use Desmos Graphing Calculator to help out
Answer:
5/4 8.10.............0.0 5=7=9
Substitute g(x) where x is in the definition of f(x).
f(g(x)) = -3(g(x))^2 - 1
f(g(x)) = -3(-5x)^2 - 1
= -3(25x^2) - 1
f(g(x)) = -75x^2 - 1
Step-by-step explanation:
the answer is
1) £30
2) £ 270