45% of what number is 63? I need to find the whole number

The sum of the exterior angles of an octagon, with one at each vertex, is degrees.

A bag of marbles weighs 2.3 kg. Each marble weighs 1.25 grams. How many pennies are in the bag?

Is - 6 rational or irrational

Mr. Lee asks a student to solve the following system of linear equations. {-28=-40q-14p 10q+4=2p Which ordered pair (p, q) is a solution to the system? (-7/5,-2) (-2,-7/5) (0, 2) (2, 0)

Is it possible for a system of two Leonard places to have no solution explain your reasoning

300 reduced by twice my age is 192

Jerome's rain gauge show 13 9/10 CM at the end of last month at the end of this month the rain gauge showed 15 3/10 centimeter how many more centimeters of rain fell this month

If the probability of a spinner landing on red in a game is 1/5, what is the probability of it not landing on red?

Every 4/11 people are women. how many women are there is there are 1210 people?

What is the length of the side opposite ZB? 3 units 4 units 5 units 6 units