63. liv volunteered for h hours. gavin volunteered for 4 fewer hours than liv. together they volunteered a total of 50 hours. write an equation that could be used to find the total number of hours that the two teens worked. 64. brendan rides his bike at a constant speed, s, for 0.75 hours. write a formula that could be used to find the distance that he rides. 65. alexis swam m meters and sade swam half as many meters as alexis. together they swam a total of 200 meters. write an equation that could be used to find the total number of meters that alexis swam. 66. grace ate five more peanuts than keona. grace ate g peanuts. together they are 40 peanuts. write an equation that could be used to find the number of peanuts that grace ate.

At river bank, checking account customers earn 0.75% interest a month on their account balances, pay no service fees for writing checks, and pay a monthly $2.00 financial charge. calculate the income earned in one month on the checking account for a customer with an account balance of $1,000. a. $4.25 b. $5.50 c. $6.75 d. $7.25 checking account earnings at baker’s bank are expressed by the equation: i = -0.09x + 10.2. while the earnings at elite bank are modeled by: i = -0.02x + 7.5. in both cases, x is the number of checks written. at what number of checks will elite bank start generating more checking account income than baker's bank? a. 12 b. 25 c. 39 d. 42 emilio’s checking account had a balance of 728.32 at the beginning of the week. he wrote checks for the following amounts throughout the week: $99.48, $33.50, $18.23, and $72.05. he also deposited his paycheck in the amount of $1,109.90. what is his account balance at the end of the week? a. $1,192.35 b. $1,222.86 c. $1,540.52 d. $1,614.96