Draw a simple sketch showing how an image is obtained by a converging lens of an object in a distance 100mm in front of the lens whose focal length is 40mm.

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

You have $600,000 saved for retirement. your account earns 5.5% interest. how much, to the nearest dollar, will you be able to pull out each month, if you want to be able to take withdrawals for 20 years?

What are the first 4 terms in the multiplication pattern given by the formula 2×4n