$85.50 divided by six

Amarathon runner jogging at a constant speed for 45 minutes is it proportional to time or not

Find an equation for the linear function which has slope -10 and x-intercept -7

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?