A bag contains 4 red marbles, 2 blue marbles, and 4 green marbles. What is the probability of drawing either a red marble or a blue marble? (Note: Percentages are rounded to the nearest percent.)

4.185 divide by 0.93

If Kayla left a $10.47 tip on a breakfast that cost $87.25, what percentage was the tip?

Enter the value for x that makes the given equation true. 2x - 4 (x + 3) = x - 3

If the area of a square is 121cm2 what is it's side length

Solve for r. -9r = 27

Which number would not be in scientific notation? 4.5 x 10^4 6 x 10^7 12.5 x 10^3 4.2 x 10^-8 2.355 x 10 ^5 0.45 x 10^3

Circular gears P and Q start rotating at the same time at constant speeds. Gear P makes 10 revolutions per minute and Gear Q makes 40 revolutions per minute.

There are over 2,700 species of snakes in the world. Over 600 species are venomous. Write the fraction of species that are not venomous as a decimal

A recipe calls for 2 tsp of butter. Melinda wants to make 40% more servings than the recipe makes. Which expression represents how many teaspoons of butter Melinda should use? A. 0.6 2 B. 1.6 2 C. 0.4 2 D. 1.4 2

Select all of the solutions of 4x2 - 36 = 0. If there are no solutions, select the empty set. -3 -3/2 3/2 3 {}