Answer:
<h2>d. $250</h2>
Step-by-step explanation:
We can use the equation of a straight line to model the cost of servicing the car.
let the cost be y and the number of hours be x
and the charge per hour is m
y=mx+c
y=50x+25
given that the time is 3.45 hours it is assumed that the charge is for 4 hours since for a fraction of 0.45 hours we are charged $50
y=50(4)+25
y=200+25
y=$225
X=3 falls in the third piecewise function,
f(x)=x+1
f(3)=3+1=4
<u>12</u> / <u>12</u> = <u>1</u>
84 / 12 = 7
<em>1/7</em>
Answer:
7 4/17
Step-by-step explanation:
