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

What is the 12th term of b(n)=-4-2(n-1)

Acompany wants to reduce the dimensions of its logo by one fourth to use on business cards. if the area of the original logo is 4 square inches, what is the area of the logo that will be used on the business cards?

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%