Answer the following question, with explanation first.
John trains for ultramarathons. He starts only able to run 8 hours straight but eventually increases that by 75%. He also increases his speed of 8 mph by 4 mph. How far can he run now?

168
He increases the time he can run by 8 *.

75 = 6 hours.

So he can now run 8 + 6 = 14 hours.

His speed is now 8 + 4 = 12 mph.

So he can run 14 * 12 = 168 miles.

.

So, the final answer is 168