A right cone has a slant height of 20 feet, and the diameter of the base is 24 feet. What is the height, h, of the cone?

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?

Three times the sum of a number and seven is negative thirty-six. what is the number?

What are the values of each variable in the diagram below?