A homing pigeon start 900 miles from home and files 50 miles

A homing pigeon start 900 miles from home and files 50 miles toward home each day Express the distance from home D in miles, as a function of the number of days d. Enter your answer as an equation with D on the lift side, and an expression involving d on the right

Solution

Total distance to home D = 900 miles

distance covered each day, d = 50 miles

Distance remained in d days will be:

D = 900 - 50*d, where d > 0