Acell phone company charges a $15 activation fee, and then $30 per month. if ian has the plan for 24 months, what is his total cost? evaluate the expression $15 + 24($30) to find the total cost.

The total cost is $735.

Step-by-step explanation:

It is given that a cell phone company charges a $15 activation fee, and then $30 per month.

Fixed changes = $15

Variable changed = $30 per month

Let x be the number of month. So the total cost is defined as

We need to find the total cost for 24 months.

Substitute x=24 in the above equation.

Therefore, the total cost is $735.

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls