Suppose two points lie on the same horizontal line. Can you use the distance formula to find the distance between them?

In factoring by grouping, what would you have for step 3 for the following? step 1: x^3 +5x^2 +4x+20 step 2: x^2 (x+5)+4(x+5) step 3: ?

Ihave trouble finding the nth term of a linear sequence

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