Which of the following statements is true?
15+0=0
15-0=0
15 divided 0=0
0 divided 15=0

On a piece of paper graph f(x)=5•(0.4)^x

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup