Find the missing side length if the area of the rectangle is 40 square feet

Which value of y will make the inequality y< -1 false?

What is the distance between (3,k+1) and (2k, k-1)

There were 32 volunteers to donate blood. unfortunately, nn of the volunteers did not meet the health requirements, so they couldn't donate. the rest of the volunteers donated 470 milliliters each.