If 60 marks is 40%, how much is full marks (Show your working out) ?

Jamie has a bag containing purple, pink, yellow, and blue marbles. There are a total of 40 marbles in the bag. Jamie randomly selects a marble from the bag and then puts it back. He repeats this process 420 times.

Brennan is making a poster for the drama club's new production. it is a regular pentagon with side lengths of 12 inches. the school wants to put up a giant replica of the poster during athletic events.

3x-2y=-1. Y=-x+3. Is (1,2) a solution do the system?

Complete the factorization of 3r? - 10x + 8.

The two tables give the number of pints of blue and yellow that are used to make different amounts of two shades of green dye. Green #1 is made by mixing blue and yellow in a ratio of 2:3. Green #2 is made by mixing blue and yellow in a ratio of 1:2.

Systems with three variables. solve each system of equation. -4x-6y+4z=-14 3x-2y-5z=-2 x-4y-z=-2

The distance between Saturn and the Sun is 9.54 AU. (One AU is the same as 150 million kilometers.) This distance in kilometers is ___ million kilometers.

A carnival charges $5 for admission plus $2 per ride. 1. Write an expression for the cost of admission plus r rides 2. Find the cost of admission plus six rides 3. how many rides can you afford if you have $15 to spend?

In a cookie recipe, for every 3 cups of flour, 2 teaspoons of vanilla is needed. How many teaspoons are needed for 5 cups of flour

Find the sum. 3/9 + 5/15 Enter your answer, as a fraction or mixed number in simplest form