Answer:
B. 77
Step-by-step explanation:
7 + x = 84
Subtract 7 from both sides
x = 77
i am pretty sure the answer is:
= -20r + 20
<span>3.the function is f^2(4) = f(3) = 1/2 x 1 = 2.5
i believe thats right still working on the others</span>
Answer: 3 to 2
Step-by-step explanation:
You simplify the ratio :)