12 students in a homeroom wearing a school t-shirt these students make up 60% of the class how many students are in the class?

There are 20 students

Step-by-step explanation:

11

step-by-step explanation:

32.50-7.50=25

225/25=11

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.