Anna plays a computer game.Each game is a win or a loss. She wins three quarters of her first 24 games. She then wins her next 12 games.For all 36 games, work out the ratio wins : lossesGive your answer in its simplest form?

The episode of a TV programme of 40 minutes long the watch is four episodes together how long is he watching TV for give your answer is an hours

C is a circle with centre the origin. A tangent to C passes through the points (-30, 0) and (0, 10) Work out an equation of C. You must show all your working.

Michael randomly selected 30% of the 7th grade students at school to found out their favorite season. What is a reasonable prediction of the number of 200 7th graders who would choose summer as their favorite season?