Last year at Sarah's bakery she sold 38 birthday cakes for $57 per cake . She spent 1/2 of that money on ingredients for baking the cakes . How much money did she spend on ingredients for the cakes ?

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .