Answer:
50 kmph
Step-by-step explanation:
75/1.5 hours
75 multiply by 2/3 (a mile)
=50
Using the given linear function, it is found that the slope is of 73, which means that for each traffic ticket, the cost of car insurance increases by $73.
<h3>What is a linear function?</h3>
A linear function is modeled by:

In which:
- m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
- b is the y-intercept, which is the value of y when x = 0.
In this problem:
- x represents the number of traffic tickets.
- y represents the cost of car insurance.
The function is:

Hence the slope is of 73, which means that for each traffic ticket, the cost of car insurance increases by $73.
You can learn more about linear functions at brainly.com/question/25823744
Answer:
11 m/s
Step-by-step explanation:
cause 8.5 add 2.5 then 11 then m/s
12x^2+x-8 - (4x^2-1)
12x^2+x-8-4x^2+1
8x^2 + x - 7 =0
8x^2 + 8x - 7x -7 = 0
8x ( x + 1 ) - 7 ( x + 1 ) = 0
(8x - 7) (x + 1) =0
8x -7 = 0
x + 1 = 0
x = 7/8 and x = -1