Answer:
22
Step-by-step explanation:
If x = 5, then plug 5 in for x .
3(5) + 7
15 + 7 = 22
When multiplying two powers that have the same base, you can add the exponents.
Answer:
months
Step-by-step explanation:
Given that company
charges
upfront and
per month and company B does not charge the upfront fee but charges
per month.
Let after
months both the company charges the same amount.
Total charges by the company
and total charges by the company
.
Now, from the given condition both the charges are equal, so

Hence, after
months both the company charges the same amount.