I seriously need help I’m stuck on this question

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

Acarton of juice contains 64 ounces miss wilson bought six cartons of juice how many ounces of juice did she buy