Tywu paid $5.63 in sales tax on an item that cost $84 before tax. At that rate how much would he pay in sales tax for an item that cost $116 before tax?

$7.7

Step-by-step explanation:

100×5.63÷84

6.7

116×6.7÷100

7.7

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.