Answer:
47
Step-by-step explanation:
54-7=47
I'm assuming we are trying to find Rita's score. We know that the total is 54. "The sum" refers to addition, so we must reverse the problem to find her score
54- 7= 47
Total - 7 = her score
the answer to your question is 61
54+7=61
D: 850 cm^3
You sum the volumes.
Prism is 15*5*7 = 525
Pyramid is 15*5*13/3 = 325
Sum is 850
