What is the first step when adding or subtracting rational expressions with unlike denominators?

Ustin weighs 15 pounds less than Greg weighs. Half of Greg's weight is 75 pounds less than Justin's weight. How much does each of them weigh? A. Greg weighs 200 pounds, and Justin weighs 185 pounds. B.

4percent of what is 56

Sally bought six pencils and three folders for $3.90. Henry bought two pencils and five folders for $3.30. Which system of equations can be used to find the price in dollars of each pencil, x, and each folder, y.

Otylia simplifies the expression 4y + y to 4y2. Use the drop-down menus to complete the statements below to explain why Otylia's solution is correct or incorrect.

Mira's kitchen sink holds up 103.468 liters of water. Round this amount to the nearest liter

Which number produces a rational number when multiplied by 1/5

3x+2 (4x-4) = 3 answer choices-1,2,3,4

What is the absolute value of | 7.5 |

If you are given measurements how can you determine if it is a triangle

If you are making a scale drawing of a giraffe that is 6m tall, and the height of the giraffe in your drawing is 3 cm, what is the scale of the drawing?