Spent 40 more hours in the lab than Laura did, how many hours did Laura spend in the lab?
5. Jane made an initial deposit to a savings account. Each week thereafter she deposited a
fixed amount to the account. The equation below models the amount, a, in dollars, that
Jane has deposited after t weekly deposits. According to the model, how many dollars
was Jane's initial deposit?
a = 18t + 15
6. Jane wants to use the money that she saved to buy a new cell phone. The cell phone costs
$350.00. How many weeks does Jane need to save to be able to afford the new cell
phone?