Find each percent increase. Round to the nearest percent. From 80 pencils to 152 pencils

help ?

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.

Icould really use some with this question.

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship