Pl help 1) Sandy is putting together supply kits and has 36 packs of x pencils, 12 packs of y crayons, and 24 erasers. Choose the expression that shows the total number of items. *

An astronaut drops a rock into a crater on the moon. the distance, d(t), in meters, the rock travels after t seconds can be modeled by the function d(t)0.82. what is the average speed, in meters per second, of the rock between 5 and 10 seconds after it was dropped?

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?