Forty-five of the 80 students walk to school. What is the ratio of students who walk to school to students who do not walk to school?

35/80

Step-by-step explanation:

just subtract 45 from 80 and that gives you the amount of students who do not walk to school.

74.5%

Step-by-step explanation:

The total number of people sampled is 1000 people.

There are 745 people who where corrective lenses.

Percent is (part)/(whole); in this case, the part is 745 and the whole is 1000, so:

745/1000 = 74.5%

Thus, the answer is 74.5%.

Hope this helps!