Suppose you are at a restaurant and have ordered $23.91 worth of food and $9.27 worth of beverages. the sales tax rate is 6% and you wish to leave a 20% tip. how much is your bill including tip?

41.81

Step-by-step explanation:

Add food and drinks:

23.91 + 9.27 = 33.18

Multiply total by tax rate:

33.18 x 0.06 = 1.99

Total bill with tax: 33.18 + 1.99 = 35.17

Some people tip on the complete bill:

35.17 x 0.20 = 7.03 Tip

Some people tip on the total before tax:

33.18 x 0.20 = 6.64

Since the question does not state how to calculate the tip here are the two possible answers:

Total with tip before tax:

35.17 + 6.64 = $41.81

Total with tip including tax:

35.17 + 7.03 = $42.20

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is