Answer:
1. d
2. 2
Step-by-step explanation:
if it's a negative it's opposite will be a positive and vice versa
Answer:
2
Step-by-step explanation:
It makes sense because it goes down one by one in both the input and output values
Answer:
2.5 gallons of the 20% solution must be replaced by the 36% solution.
Step-by-step explanation:






Answer:

Step-by-step explanation:
<u><em>The question is</em></u>
Which equation should she use?
we have the formula

Solve for k
That means ----> isolate the variable k
Multiply by 2 both sides

Divide by x^2 both sides

Rewrite

The answer will be
f(3)=3(3)+7
=9+7
=16