Growing up, joe lived in a small town. when he left for college, the population was 840.
the population has grown by 5% after joe's first year of college. what is the new
population? show your work.

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

When you arrive at the lake, your friend realises he hasn’t got any swimming trunks. you need to ride to a sports shop. the sports shop is 8350 metres away. how many metres is it to cycle there and back?

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane