Tracey bought a diamond ring appraised at$ 1600 at an antique store. if diamonds have appreciated in value at an annual rate of 10%, what was the value of the ring 10 years ago?

Quick translate "x is 12 units from 20" into an equation. what are the values of x being described? if you can answer any of my other questions that'd be great too

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax