Mary invests £12000 in a saving account. the account pays 1.5% compound interest per year. work out the value of her investment after 2 years.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.