What is x?

3-2x=21

Show the steps?

In the game of "Between," two cards are dealt from a standard deck and not replaced. You then pick a third card from the deck. To win, you must pick a card that has a value between the other two cards.

Ms. Jackson has 32 students. She needs to order a set of books for her class. Each box has 12 books. How many boxes must she order to make sure each student gets a book?

Use the Pythagorean Theorem to find the length of the missing side of a right triangle whose legs equal √2 and 2√15. a right triangle with legs as 2 square root of 15 and square root of 2. a. 64 b. 4 + 2√15 c. 8 d. None of the above

A die with a 10% chance of rolling a 6 is rolled 10 times in a row. What is the probability that a 6 is rolled exactly 2 times?

If the sum of a number and eight is tripled the result is nine less than twice the number. Find the number

Use the linear combination method to solve the system of equations. - 2.1x + 4y = 5.3 2.1x - 5.5y = - 0.2 What is the solution to the system? (-1.1 ⇒ - 9, 3.4 ⇒ - 3.4)

What is (5*2) : 6*0

If y=14 when x=8 determine the value of y when x = 12

The product of 5 and an odd number will end in what value? A) 0 B) 1 C) 3 D) 5

7. Let P = (-2,4). a. Line r is horizontal and passes through P. Write an equation for r. b. Line s is vertical and passes through P. Write an equation for s.