8th grade math question need an answer asap

4.9 x 10^8 = 490,000,000

Hope that helps.

,Maura run faster.

Step-by-step explanation:

Given  : Maura runs 5 miles in 1.25 hours. Ava runs 3 miles in 50 minutes, or 0.83 hour.

To find : Who runs faster.

Solution : We have given

Maura runs in 1.25 hours = 5 miles.

Maura runs in 1 hours =   miles.

Maura runs in 1 hours =   miles.

                                    = 4 miles.

Ava runs in 0.83 hour=  3 miles.

Ava runs in  1 hour=  3 * 0.83 miles.

                               = 2.49 miles.

So, Maura run faster.

Therefore,Maura run faster.