Evaluate the expression when a = 3 and y=-3.
-a +6y

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?

What is the measure of angle afe? 79 81 91 99

17 in long 1.3 ft wide and 8in high what is the volume