The rule that maps each domain value to its range value is f(x)

Chip worked at the animal shelter for 6 hours each week for several weeks. he worked for a total of 42 hours. which of the following can be used to find the number of weeks chip worked at the animal shelter?

Volume of cylinder with a radius of 8cm and height of 25 cm

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?