The gas cost will be $19.53 for this trip.
Step-by-step explanation:
Given,
Distance covered by car per gallon = 32 miles
Cost of one gallon = $1.99
Unit rate in terms of miles;
32 miles = $1.99
1 mile = 
Therefore,
314 miles = Unit rate of mile * 314 miles
314 miles = 

Rounding off to nearest hundredth;
314 miles = $19.53
The gas cost will be $19.53 for this trip.
Keywords: unit rate, multiplication
Learn more about unit rate at:
#LearnwithBrainly
The straight line joining the points A(3,-5) and B(6,k) has a gradient of 4.
Gradient is the slope
So the slope of the line joining the points A(3,-5) and B(6,k) is 4
Slope of line joining two points = 
A(3,-5) and B(6,k) are (x1,y1) and (x2,y2)
slope = 
slope = 
We know slope =4

Cross multiply and solve for k
k + 5 = 12
k = 7
The value of k = 7
The point-slope form:

m - slope
(x₁, y₁) - point
The formula of a slope:

We have the points (-2, 7) and (1, 1). Substitute:

<em>point-slope form</em>
<em> slope-intercept form</em>
<em>standard form</em>
How to solve your problem
I believe the correct number is 88.