John wants to buy a new game for his computer. he can save $12 a week if he mows his neighbor's lawn and $10 a week if he babysits his nephew. how many weeks will it take john to save enough money to buy the computer game?

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