Jack's grandfather gave his parents a check to start a college savings account. they opened the account with the check, and then deposited $175 per month since. after 5 years there is $13,000 in the account. (this doesn't include intrest) write an equation to model the account balance, y, after x years. what was the original check amount from jack's grandfather?

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