Y=4x because 20/5 equals 4
Answer:
67.15
Step-by-step explanation:
subtract 15 percent of 79 from 79
Answer:
21/5
Step-by-step explanation:
First make x the subject:-
3x = F(x) + 4
x = (F(x) + 4) / 3
f(-1(x) = (x + 4) / 3 answer
Answer: b would actually be the closest but the exact answer is 145.2