hello
from the question given, the dog walker charges a flat rate of $6 and an extra $30 per hour.
we can write out an equation in function notation
let the number of hours be represented by x
now we can proceed to solve the cost of the walk for 45 minutes
now we can input the value into the equation and know the cost for 45 minutes walk
from the calculation above, the cost of 45 minutes walk will cost $28.5