Why do we use variables and what's the significance of using a variable?

What is the cube root of 1,331?

91. If there is no real number solution to the quadratic equation, x^2+2x+C=0, what is a possible value of c? 1 -2 0 3

0.81 repeating decimal into a fraction

The perimeter of a rectangle is 48 inches. The rectangle is 13 inches long. How wide is the rectange? Tysm!

Brian bought beverages for his coworkers. One day he bought 3 lemonades and 4 iced teas for $12.00. The next day he bought 5 lemonades and 2 iced teas for $11.50. Find the cost of 1 lemonade and 1 iced tea, to the nearest cent.

What is the proportional relationship with the table? x 1 2 3 4 y 4 8 12 16 1/4 4 8

What is the final step in the problem solving process

0.35 0.15 0.05 0.05 as fraction

Which expressions are equivalent to 3 (62) ? Select each correct answer. 3 (60 + 2) 3 (6 + 2) 3 (6 + 56) 3 (60 + 20)

George took his friends to a movie. He bought 3 movie tickets that cost x dollars each, and one jumbo chicken sandwhich. The cost 15 dollars less than one movie ticket. which expression represents this situation?