Answer:
2
Explanation:
f(2)=3
g(2)=-1
f(2)+g(2)=f+g(2)=2
Answer:

The number of CDs sold last week was 84 and the number of CDs sold this week was 26
Step-by-step explanation:
Let
x ---> number of CDs sold last week
y ---> number of CDs sold this week
we know that
Last week she sold 6 more than 3 times the number of CDs that she sold this week
----> equation A
Ms. Lott’s sold a total of 110 CDs over the 2 weeks
----> equation B
Solve the system by substitution
substitute equation A in equation B

solve for y

Find the value of x

therefore
The number of CDs sold last week was 84 and the number of CDs sold this week was 26
128 = 8d, because the product calls for multiplication to be performed.
The number of green marbles should expect after 400 trials = 250