A checking account has a balance of -$126.89. A customer makes two deposits, one 3.5 times the other, and then withdraws $25. Write an expression for the new balance using as few terms as possible.

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.