Earl earns a weekly salary of $150 plus 20% of the amount of his sales for the week he earned $230 the equation below can be used to find s, the amount of his sales in dollars las week. 230=150+0.2s what was the amount of earls sales last week? a)$180 b)$380 c)$400 d)$450

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?