Answer:
See attached picture
Step-by-step explanation:
To graph a linear function like y=mx+b, find m and b. Here m = -1/2 and b= 2 for 
.
Start at (0,2) on the y-axis and plot a point. Then move from that point one unit down and over to the right 2. Plot the point and connect.
It is a question that has too little information to answer.
Yes good job you are correct
Let x - hours Carlos drove ; Let y - hours Maria drove
Equation 1: x + y = 4.4
x = 4.4 - y
Equation 2: 55x + 50y = 233
55(4.4 - y) + 50y = 233
242 - 55y + 50y = 233
-5y = 233-242
-5y = -9
y=9/5 or 1.8 hours Maria drove
To find time Carlos drove:
x=4.4 - 1.8
x = 2.6 hours
