Alexis washes 10 1/2 windows in 3/4 hour. at this rate, how many windows can she wash in an hour ?

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

Which two fractions are equivalent to 6/11? 6/22 and 18/33 12/22 and 18/33 12/22 and 18/22 3/5 and 6/10