Johanna rented a car. Rental costs were $29.00 per day plus $0.49 for each mile driven. If she kept the car for 1 day and drove 50 miles, how much did she owe?

She owes $53.50

Step-by-step explanation:

First we need to set up an equation:

29(t) + 0.49(d) = o

where t = time, d = distance, and o = money owed

She drove for 1 day and 50 miles so we can plug in those numbers:

29(1) + 0.49(50) = o

Now we can mutiply:

29 + 24.5 = o

Then add:

53.5 = o

She owes $53.50

$53.50

Step-by-step explanation:

29(t) + 0.49(d) =$53.50

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is: