Today, Mariam wants to do no more than 120 jumping jacks for her workout in 6 minutes. She already did 30 jumping jacks. Which inequality could be used to determine the number of jumping jack, j, she would need to do each minute for 2 more minutes to achieve her goal?
a. 2m + 30 ≤ 120
b. 2m + 30 < 120
c. 2m + 30 ≥ 120
d. 2m + 30 > 120