Answer:
A. 13
Step-by-step explanation:
When you plug the numbers in, 4 times 13 = 52+9=61 and 63 is still greate so anything above 13 would make the sentence correct. So that is why 13 is NOT a solution.
Answer:
B. 3(a + 7) + 3/(a + 2)
Step-by-step explanation:
Just substitute (a+2) in for every (x) in the equation:
f(a + 2) = 3 ((a + 2) + 5) + 4/(a+2)
= 3 (a + 7) + 4/(a+2)
6 divided by 
is the same as 6/1 multiplied by 9/8, which gives us 7 as the whole answer. therefore, I think number 1 and 4 are the correct selections
What does a equal to in the anwser
The function f(x) shows how much Kate pays for the data service for downloading x songs in a month. So f(14) will represent the amount that Kate will have to pay for downloading 14 songs in a month.
f(x) = 2.50x + 11.50
Replacing x by 14, we get:
f(14) = 2.50(14) + 11.50 = 46.5
Thus, Kate will have to pay $ 46.5 for downloading 14 songs in a month
