John saved 65 coins. he saved nickels and dimes only. If the totally $4.90, how many nickels did he have?

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

The parabola opens: y=√x-4 (principal square root) up down right left

Solve -2(4y + 6) = 52. 5 -5 8 -8 and !