Students in Mrs. Brown's class must complete at least 40 math problems for homework every week. The table shows the progress of four students on Wednesday.

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.

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?