Sam ran two-fifths of a mile each day for 4 days. How far did he run after the 4 days?

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: ?

What is the y-intercept of the line given by the equation

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