Tomas makes balloon sculptures at a circus. in 180 minutes, he uses 252 balloons to make 36 identical balloon sculptures.
a. how many minutes does it take to make one balloon sculpture? how many balloons are used in one sculpture?
b. what is tomas's unit rate for balloons used per minute?

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212