How do I simplify by combining these numbers - 3x - 5y + 2x + 10y

assume that random guesses are made for 9 multiple choice questions on an SAT test, so that there are n=9 trials, each with probability of success (correct) given by p=0.6. find the indicated probability for the number of correct answers.

Tyler walked 2 miles a day for the first week of his exercise plan then he walked 3 miles a day for the next nine days how many miles to Tyler walk in all

Use distributive property to find the product of 27 and 54

What is the equation of the axis of symmetry of y = 2x^2 + 4x - 3

Adding 3/8 to a number increases it by 5% of its original value. What is the original

What is 400to the second power divided by 1052

In a random sample of n1 = 162 males, there are x1 = 63 people that have blue eyes. In a random sample of n2 = 333 females, there are x2 = 97 that have blue eyes.

You buy 15 flowers at the flower shop. Carnations cost $2 each and daises cost $4 each. You spend $40. How many carnations and daisies do you buy?

Find the value of sin210° How do you find this?

Elizabith uses 23.25 ounces of granola and 10.5 ounces of raisins for 15 servings of tril mix if each serving contains the same amount of trail mix how much is in each serving