A Wildlife Ranger Finds That There Is a Linear Relationship

Short Answer

A wildlife ranger finds that there is a linear relationship between the number of bushels of corn distributed in a month and the number of deer at the park. If the ranger distributes no bushels of corn, there are 47 deer at the park. For each additional bushel of corn distributed, 7 more deer come to the park.
a) If ^d is the number of deer at the park and ^b is the number of bushels of corn fed in a month, find a formula for ^d in terms of ^b .
b) How many deer are at the park if the ranger feeds 2 bushels of corn?
c) How many bushels of corn must be distributed in order to have ⁷⁵ deer at the park?