Jackson is on a new exercise regimen. To begin, his trainer does not want him to complete more than a total of 27 lunges and sit-ups. For every lunge that he completes, Jacob burns 30 calories. He burns an additional 20 calories for every sit-up. His goal is to burn at least 620 calories during a workout session. Which is a combination of lunges and sit-ups that Jacob can complete in a session? (3 points) a 7 lunges and 19 sit-ups
b 11 lunges and 15 sit-ups
c 10 lunges and 14 sit-ups
d 12 lunges and 19 sit-ups