Question

7 multiple choice 1 point
warren buys a camera for $450. if the sales tax rate is 8%, how much will warren pay in total, including sales tax?
$501
$489
$458
$486

8 multiple choice 1 point
which is the better deal?

• 48 pack of water bottles for $52.20 a pack
• 32 pack of water bottles for $38.99 a pack

32 pack of water bottles for $38.99 a pack
48 pack of water bottles for $52.20 a pack

9 multiple choice 1 point
kiara dines at a restaurant and wants to leave a 15% tip for the waiter. if her bill is $60 before tax, how much should she leave as a tip?
$8
$15
$16
$9

Explanation:

Calculate total cost with sales tax for Question 7

$$
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$$

Compare unit rates for Question 8

$$
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$$

Calculate tip amount for Question 9

$$ \text{Tip} = 60 \times 0.15 = 9 $$

Answer:

Question 7

• (A) $501
• (B) $489
• (C) $458
• (D) $486 (Correct answer)

Question 8

• (A) 32 pack of water bottles for $38.99 a pack
• (B) 48 pack of water bottles for $52.20 a pack (Correct answer)

Question 9

• (A) $8
• (B) $15
• (C) $16
• (D) $9 (Correct answer)