Percent Reasoning

Sam deposited $3500 into a investment account that earns a simple interest rate of 1.8% annually. How much interest will the account earn after 18 months

• $9450

• $94.50

• $1134

• $945

 Billy found a deal for a kayak trip to see the bioluminescent jellyfish in the Indian River Lagoon. The deal said it was 30% of the regular price. Billy paid $378 for 5 adults. What was the regular cost of the kayak trip for 1 adult?

• $65.40

• $75.60

• $124.30

• $252.00

A dress is on sale for 15% off.  If the original price was $68, what is the sale price?

A store is having a store wide sale on all merchandise.  All items are discounted by 12%. There is a pair of skates that usually sells for $86.99. What would be the total cost of the skates if a 6.5% sales tax is applied after the discount?

• $81.53

• $73.69

• $84.30

• $72.35

A family went out to dinner and the bill came to $109.75. The family decided to leave a total of $129.51 for the bill and tip. The percent of the tip, rounded to the nearest percent is  _________ %

Mark and his family went out for dinner for his birthday. The cost of the meal before sales tax was $58.90. The family decides to tip the server 18% for the good service they received. How much did they pay in total for his family birthday meal? 

• $10.60

• $48.30

• $69.50

• $76.90

Shae makes an investment of $7,880 into an account that earn 3.5% simple interest per year.  What is the total amount that Shanice will have in the account after 9 years?

• $2482.20

• $10362.20

• $8880

• $14325.33

Zachariah purchased a laptop whose battery life was originally 6 hours. The manufacturer remade the battery so that the battery life is now 8.5 hours. The change in battery life is an example of a percent  _________ ( Responses: Increase, Decrease)  _________ . The actual percent of change is   _________ %.

• Increase, 50%

• Decrease, 49%

• Increase, 42%

• Decrease, 38%

During the month of September 2022, the average price per gallon of gas was $4.62. During October of 2022, the average price per gallon of gas dropped to $3.43. What was the percent decrease from September of 2022 to October of 2022? Round to the nearest percent. The percent decrease from September of 2022 to October of 2022 was  _________ %.

The accepted length of a tool is 265 millimeters (mm). During an inspection, an engineer measured one of his tools to ensure that it fit within the allowable error range. He measured it at 345 millimeters. What was the percentage of error, rounded to the nearest hundredth percent? 

• 0.23%

• 0.30%

• 23.19%

• 30.19%