Twenty-two percent of the seventh-grade class has blue eyes. if the seventh-grade class has 139 students, about how many have blue eyes?

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)