At the audtions, 40 studens tried out for the school show choir, but only 12 will be chosen. How many different ways can the show choir be formed

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?

Solve the system of equations. y= 2x y= x^2 - 15

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account