Question

1. a video game console costs $200. the sales tax rate is 9%.

how much is the sales tax?

1. you take a cab ride that costs $18.50 you decide to tip the driver 20%.

what is the tip amount?

1. a grocery bill comes to $85. before tax. the sales tax is 8%.

how much is the tax?

Explanation:

Question 4

Step1: Recall the formula for sales tax

Sales tax = Cost of item × Tax rate. Here, the cost of the video game console is $200 and the tax rate is 9% or 0.09 in decimal.
$$\text{Sales Tax} = 200\times0.09$$

Step2: Calculate the sales tax

Multiply 200 by 0.09.
$$200\times0.09 = 18$$

Step1: Recall the formula for tip amount

Tip amount = Cost of cab ride × Tip rate. The cost of the cab ride is $18.50 and the tip rate is 20% or 0.20 in decimal.
$$\text{Tip Amount} = 18.50\times0.20$$

Step2: Calculate the tip amount

Multiply 18.50 by 0.20.
$$18.50\times0.20 = 3.70$$

Step1: Recall the formula for sales tax

Sales tax = Cost of groceries before tax × Tax rate. The cost before tax is $85 and the tax rate is 8% or 0.08 in decimal.
$$\text{Sales Tax} = 85\times0.08$$

Step2: Calculate the sales tax

Multiply 85 by 0.08.
$$85\times0.08 = 6.80$$

Answer:

The sales tax is $18.

Question 5