Solve the system {y = 3%, x + 2y = -21} using the substitution method.

The jones farm has 24 cows that each produce 52 quarts of milk a day. how many quarts are produced each day altogether

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?