Answer:
B and D
Step-by-step explanation:
First, you have to solve the first equation. (Hint: you use the distributive property.)
2(5x + 2 + x)
10x + 4 + 2x
12x + 4
We can already see that B is correct and A is incorrect.
Now to solve C and D.
C = 2(5x + 3)
10x + 6
This is incorrect.
D = 2(6x + 2)
12x + 4
This is correct.
Answer:
let's work this out backwards
6:00-10 minutes to get home
5:50-3 hours spent volunteering
2:50-30 minutes to get to food bank
2:20
You need to leave for the food bank at the latest 2:20.
Replace the x in 7x by (3x + 1):-
(f o g)(x) = 7 * (3x + 1)
= 21x + 7 which is choice D.
I think the answer is D. hours because its variation does not depend on another variable
