Carl can ride his bike twice as fast as he can jog. he jogged three times around a 1 mile trail in 24 minutes and then rode the same trail with his bike how long did it take him to bike the trail once

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?