1) Working alone, Ryan can dig a 10 ft by 10 ft hole in five hours. Castel can dig the same
hole in six hours. How long would it take
them if they worked together?

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?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'