At practice, Diego does twice as many
push-ups as Noah, and also 40 jumping jacks. He does 62 exercises in total. The equation 2+40=62 describes this situation. What does the variable represent? Explain your choice.
a. The number of jumping jacks Diego does
b. The number of push-ups Diego does
c. The number of jumping jacks Noah does
d. The number of push-ups Noah does