exam Maths Puzzle Numerical Ability

Find an example from your line of work or daily life that can be expressed as a linear equation with two variables. Graph this equation.

Read Solution (Total 0)

exam Other Question

Kevin is three times as old as Bob. Three years ago the sum of their ages was 22yr. How old is each now? This is a homework problem that I cannot seem to solve. It states to:
Find the sum of the first 20 terms of the series

1 + 8 + 64 + 512 + . . .

Can you please help? Thank you in advance.