How do I get a variable by its self

How many prime numbers are there between 21 and 35? A. none B. 2 C. 4 D. 3

Which of the following are quadratic functions? Check all that apply. a. y=2 (x-3x^2+1) b. y=5+2x c. y=1/2x^2-13x+4 d. y = x/x-1 Which of the following are quadratic functions? Check all that apply. a. y=2 (x-3x^2+1) b. y=5+2x c. y=1/2x^2-13x+4 d.

a 1ft long piece of wire needs to be divided into two pieces which will form the shape of a circle and a square. Determine the length of each piece so that the sum of the areas of the circle and the square is minimized

At Random Stationary, the sales records of 24 employees were examined. Twelve of the employees worked the morning shifts and 12 of them worked the afternoon shifts.

Jamal ran 8 kilometers, sprinted 500 meters, and climbed bleachers for a distance of 1.5 kilometers during track practice. How many meters, in total, did he travel during practice?

Which of the following is equal to the rational expression when x does not equal - 2 or - 6? 3 (x+2) / (x+6) (x+2) A{ 1/x+6 B{ 3/x+6 C{ 1/x+2 D{ 3/x+2

Veronica is choosing between two health clubs. After how many months will the total cost for each health club be the same? Yoga Studio A. Membership $26 Monthly $23.25 Yoga Studio B. Membership $59 Monthly $17.75

What is the volume of a square that's sides are 5cm, 3cm, 8cm, 12cm?

Ten times anumber increased by four is no more than twenty-five

During a checkers game, there are 16 pieces left. The ratio of black to red is 3:5. How many black pieces are on the board?