I remember some of this from 6th grade!
a.) the 7th graders have a smaller range compared to the 8th graders.
c.) 30 and 18 are the medians. Subtract them and you get 12.
Hope I could help partially
Answer:
84
Step-by-step explanation:
15+15+27+27
I know u gonna use calculator girl.
Because it's a positive number that can be gained by multiplying two smaller positive numbers.