A 2p coin has a mass of 7 grams. Find the total mass of £80 worth of 2p coins.
Give your answer in kilograms.

If g(x) is an odd function, which function must be an even function?

What is the product? a-3/15a × 5/a-3

2. using calculations based on a perpetual inventory system, determine the inventory balance altira would report in its august 31, 2021, balance sheet and the cost of goods sold it would report in its august 2021 income statement using the average cost method. (round "average cost per unit" to 2 decimal places.)