Unit rate word problem sidney used 9 centimeters of tape to wrap 3 presents. how many present did sidney wrap if she used 18 centimeters of tape

What is the average rate of change for this function for the interval from x=2 to x=4 ?

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.

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression