The expression 4x, gives the perimeter of a square with a side length of x units.
what is the perimeter of a square with a side length of 5/7

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²