A jar contains 7 blue marbles, 3 red marbles, and 3 green marbles. You pick one marble without looking. What is the probability that the marble will be red? Answer as a fraction in the simplest form.

Find the greatest common factor of the polynomial: 10x^5+15x^4-25x^3 10x^5 x^3 5x^3 5

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online