Express 4 8/9 as an improper fraction a 36/9 b 21/9 c 44/9 d 40/9

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.

What is x and y intercepts for y=x+7

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1