Answer:
and

Step-by-step explanation:
Dawn wants to compare the volume of a basketball with the volume of a tennis ball.
Now, if the radius of the basketball is R and that of the tennis ball is r, then the formula that can be used to determine the volume of each ball will be
and

Now, dividing V by v we can compare the volume of the basketball and the tennis ball. (Answer)
There are 4 students who have piercings both on their ear and their noses.
Answer: 169 more?
Step-by-step explanation: I multiplied 13x13 and got 169
Step-by-step explanation:
42x=252
x=252/4
x=6
well hope that helps