Tom has 15 pencils. 5 of them do not have erasers. which ratio compares the number of pencils without erasers to the number of pencils with erasers?
a. 5: 15
b. 5: 10
c. 10: 5
d. 15: 5

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?