The mass of a stone is 5kg. The stone is twice as heavy as a book. The book is 5 times heavier than a ball. What is the mass of the ball?

Solve the division problem. - 102.75 / - 3 round to the nearest huundredth

Consider two situations: Situation 1: In Lakeville, Melinda's television cable bill is a flat rate of $50 per month, plus $1.50 for every movie she rents. After one month of service, her bill is $66.25.

The least common multiple of two numbers is 60, and one of the numbers is 7 less than the other number. What are the numbers? Justify your answer

Eudora ran from her home to her secret laboratory at an average speed of 12 km/h. Then she then took one of her jetpacks and flew to her school at an average speed of 76 km/h.

Without calculating, is the equation (1.8 times 3) times 2.1 = (1.8 times 2.1) true or false? Explain your reasoning.

Is the GFC of any two even numbers even?

Factorise the following expression: 40 gr2 + 15rw

Sally baked bran recipe it calls 5lbs of sugar and 20lbs of dried beans how many pounds of sugar needed for just 1 lbs of dried beans?

How many variable terms are in the expression 3x^y + 5x^ - 4y + z + 9? (Input a numeric value only)

Find a number You can add to 6274 so you have to regroup ones, tens, and Hundreds