18 out of 20 is what percentage

Dom has enough tins of paint to cover a total surface of 280m squared. He needs to paint a community hall with an area to be painted of 255m squared. Calculate the percentage of paint that should be left over. Give your answer to 1 decimal place.

How do you factor the coefficient of 3/8d+3/4?

There are 72 students in the student council. The ratio of girls to boys is 4:5. How many girls are in the student council? What is the ratio of girls to students?

If 8 out of 20 students in a class are boys, what percent of the class is made up of girls?

To solve this answer you need a place value chart that has disks. 3 copies of 2 tenths

Given the X has a poisson distribution with u=.2, what is the probability that X = 1?

Sophia was selling tickets at the high school dance. At the end of the evening, she picked up the cash box and noticed a $5 bill lying on the floor next to it. She said, I wonder whether the dollar belongs inside the cash box or not.

Write an addition fact that will give the same sum as 6+8

If triangle MNO is congruent to triangle PQR, name a pair of congruent angles.

Evaluate h-2g for h = 4 and g = 32. A. 1/2 B. 2 C. 8