so my question is explain how to find the answer of Pamela ran 3 and 3/4 miles around the school track if each lap is 1/2 mile how many laps did she run and I don't know how to explain the question

She ran 7.5 laps

Step-by-step explanation:

Given that:

Total Distance Covered = d = 3 and 3/4 miles

that is:

Distance per mile = l = 1/2 miles

In order to find the number of laps, we have to simply divide the total distance covered by number of miles in one lap.

Let n be the number of laps then

Hence,

She ran 7.5 laps

y=x+9

?

step-by-step explanation:

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