Simplify.
(5v2-3v – 4)+(7v?-v+6)

What is the volume of the sphere shown below with a radius of 3?

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?

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2