A bag contains 10 black marbles, 20 white marbles and 5 grey marbles. You pick one without looking. what is the probability that the marble be either white or grey

There are 80 pupils in Jaydon's year group. 30% walk to school. 15% cycle to school. The rest get a bus. How many pupils walk to school? go Show me the answer How many pupils get the bus? go

Factor the polynomial completely. 24x^3-40x^2 45x-75

Carla's retirement party will cost $15 if she invites 3 guests. If there are 4 guests, how much will Carla's retirement party cost? Assume the relationship is directly proportional.

Which of the following is a statistical question A. How many floors are in the Empire state building? B. How many states are in the united states of America C. How tall is the Washington monument in Washington D. C D. How old was each U.

A forest covers 69,000 acres. A survey finds that 0.4 % of the forest is old-growth trees. How many acres of old-growth trees are there?

How to turn a fraction into a division problem?

Diana went shopping and purchased 4.2 pounds of peaches at $2.35 per pound and 3.8 pounds of blueberries at $2.50 per pound. What was the total amount of money Diana spent on the peaches and blueberries?

Question: If each girl used one marshmallow per smore how many marshmallows were used in all? Show your work.

How many lines of symmetry does the shape below appear to have

Who is taller 180 cm or 5ft 8in.