Parker is going to attend a four-year university that has an annual tuition of $16,110. He has $45,800 in savings and has a grant for $5,000. How much more does he need to pay for the tuition for all four years?

$13,640

Step-by-step explanation:

money that need to pay for the tuition for all four years

=$16,110×4

=$64,440

the money he had

=$45,800+$5,000

=$50,800

the difference

=$64,440-$50,800

=$13,640

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have