How many milliliters of a 12% alcohol solution and how many milliliters of a 30% alcohol solution must be mixed to obtain 72 ml of a 20% alcohol solution?

A=1/2h (a+b) for a Not sure what to do here

A supply company marks up their doctor scrubs by 40%. Find the doctor's cost for a set of scrubs that the supply company buys for $34.

What is the diffrence bewtween arthimetic for and geomtric form

Bryan says that 4/10 is about half of a whole. is he correct? explain your reasoning.

Simplify the following (7) (-6).

If you flip a coin and roll a 6-sided die, what is the probability that you will flip a heads and roll a 5?

Andrew will roll a number cube and flipping a coin for a probability experiment the faces of a number cube are labeled one through six the coin to land on heads or tails if Andrew Rosen number cube once in flips a coin ones write a list that

Let x be the total number of customers in a one-hour interval and y be the total number of female customers in the same interval. find the joint pmf of x and y.

An adult alligator may weigh 350 pounds. A newly hatched alligator weighs only 1/9 pound. The adult weighs how many times the hathling

A tailor needs 3 2/5 meters of cloth to make a poncho. How many meters does he need to make 15 ponchos of the same size?