When the treats are finished she cuts them inti 30 equal pieces. she gives two fifths to her niece and brings the rest to her students. how many treats will she bring ti her class

Rita wants to buy sweater that was originally priced at $25 today the sweater is on sale for 40% off the original price what is the sale price of the sweater. rita has a coupon for an addition 10% off the sale price. how much will rita pay for the sweater before taxes

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.