A total of 140 seventh- and eighth-grade boys were asked which sport they preferred, basketball or baseball.

The answer is, " About 56% of those who prefer baseball are eight graders"

Step by Step Explanation:

Step 1: Turn 56% to a decimal, you get 0.56

Step 2: Multiply 0.56 by 68, the total amount of people who like baseball

Step 3 : you get 38.08 ( Don't mind the extra .08, just round )

Step 4 : You celebrate with a little victory dance

120 bpm

Step-by-step explanation:

after strenuous exercise your heart rate wouldn't decrease as your body needs more oxygenated blood causing your heart to pump harder and faster