D__ is 7.5<x
C is x<10
Step-by-step explanation:
just do the inequality and graph
The answer would be one and a half for each friend.
Answer:
25 questions
Step-by-step explanation:
84%*x = 21
-simplify-
0.84 *x = 21
Divide both sides by 0.84 than...
you get x = 25
To find the inverse function, interchange the variables and solve for y.
f^-1(n) = 1/2 + n/3
