You are considering buying 12 gold coins that look​ alike, but you have been told that one of them is a heavy counterfeit. How can you find the heavy coin in three weighings on a balance​ scale?

While in New Zealand, Sandy purchased a merino wool sweater for 160 New Zealand dollars. What was the cost of the sweater in US dollars? The current exchange rate is $1 N = $0.66 US. You must show all work on your own paper and submit with the test.

Can you help me with question #30 please.

6. Dewayne opened a savings account 4 years ago with a $1400 deposit. He has left the account alone since then, and the savings account has earned 6.5% simple interest each year. How much money is in Dewayne savings account now? A. $910 B. $1491 C.$1764 D. $2310

A manufacturer of skateboards offered a 7/5/2 chain discount to many customers. Bob’s Sporting Goods ordered 20 skateboards for a total $645 list price.a. What was the net price of the skateboards? (Do not round intermediate calculations. Round your final answer to the nearest cent.)

Ab 4    If Cameron and Cadena add an 18% tip to the bill after tax, what does thei lunch cost in total?