Eight times a number plus five times another number is -13. The sum of the number is 1. What are the nymber?

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

Which function has the smallest y-intercept value

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.