Which is a zero of the quadratic function f(x) = 4x2 + 24x + 11?

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?

Two lines parallel to the same plane are parallel to eachother

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie