Colin buys a car for £22000. It depreciates at a rate of 1% per year.
How much will it be worth in 5 years.
Give your answer to the nearest penny where appropriate.

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?