A bag has 7 red marbles, 8 blue marbles, and 5 purple marbles. Rachel draws a marble from the bag without looking.

What is the probability that Rachel draws a blue marble?

Teresa earns $6.25 per hour. Calculate he wage for the week where she works the following number of hours:

Sam bought brushes for $8, a palette for $5, and oil paints for $15. He paid $29.82 in all. What sales-tax rate did Sam pay?

Find how much was invested at each rate if $20,000 more was invested at 7% than at 5% what would be its equation

What are the solutions of x^2-3x+3 = 0?

Why xy=c is hyperbola?

Create the explicit formula for the sequence: 2, 8, 14,. (Hint: Write your formula and then simplify it.)

Cristina is painting the playhouse she made for her sister. She intends to paint only the outside of the house that does not include the floor. The paint she chose must be purchased in full gallons. Each gallon covers 200ft² and costs $15.

Solve the equation. - 4 (3 - 2x) + 2x = 2x - 8 A) x = 2 B) x = - 1 C) x = 1 / 2 D) x = 1 / 3

Theta is an acute angle and sin theta and cos theta are given. Use identities to find tan, csc, sec, and cot. Where necessary, rationalize denominators. Sin theta = 8/17, cos theta = 15/17. a. tan theta = ? b. csc theta = ? c. sec theta = ? d.

Peter measured the width of one cardboard strip as 3 1/4 ft. A second cardboard strip measured 3 2/3 ft in width. Estimate the combined width of the cardboard strips. a. 12 ft b. 6 ft c. 5 ft d. 7 ft