What uses numbers, variables and operations symbol?

Explain how this diagram 2/5 divided by 3

Write an absolute value equation that has the solution x=-10 and x=-5

Some kids went on a bike ride. The ride was six hours long and the kids traveled 54 miles. For part of the ride they biked at a speed of 7 miles per hour and for part of the ride they biked at a speed of 11 miles per hour.

Jimmy bought 9 apples multiplied by 3. Jimmy then gives Abby 4 apples how many apples does Dave have in the end?

Simplify the expression: ((xy^-2) ^3) / ((y^3) (x^-2)) ^1/3

unit rate of 175 Calories in 12 ounces

What are the solutions to the following system? -2x+y=-5 y - -3x²+5 L

What is y - 5 (2 - y) = 8

A baby gains 11 pounds in its first year of life. The baby gained 4 1/4 pounds during the first four months and 3 1/2pounds in its second four months. How much did the baby gain in the last four months?

Y=3x+5 what does the y intercept tells about this equation?