A copy machine makes 44 copies per minute . how many copies does it make in 3 minutes and 45 seconds

Which expression is equivalent to 4 square root 6 divided by 3 root 2

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?

Evaluate cos2θ for cosθ = square root of 3/2