A marble is selected at random from a jar containing 10 red marbles, 20 yellow marbles, and 70 green marbles. Find the theoretical probability that it is either red or green.

A square patio has an area of 200 square feet. how long is each side of the patio to the nearest 0.05?

Pizza planet is running a speacial. 3 pizzas for 16.50 what is the unit rate for one pizza

Which two numbers does 128 lie between on a number line

In one day and a child five times the sum of the number of hours Brian traveled and 2. Together they traveled 20 hours. Find the number of hours each person traveled

The distance between City A and City B is 250 miles. A length of 2.3 feet represents this distance on a certain wall map. City C and City D are 4.14 feet apart on this map. What is the actual distance between City C and City D?

0.563 wrote as a fraction

The quotient of 5:6 rounded to the nearest hundreth

How do you long divide with 3 digits?

Is 1/2 and 2/4 are equivalent fractions?

Let f (x) = 1-x and g (x) = x^3+4, find (f°g) (0)