Write 90 mm2 in cm2

I still don’t know it

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers

At school 460 of the students walk to school the number of students who take public transit is 20% of the number of students who walk. how many students take public transit