Two students write the following expressions to answer an exercise: 7 + 4(5 – 3)2 + and 8 + (5 – 3)24 + 7

a. Simplify the two expressions. List each step you use.

b. Explain the similarities in the steps.

C. Make up another expression that uses the same numbers and operations, but
has a different value. Then simplify the expression, listing each step.

At the county fair, animals are judged for the quality of their breeding and health. the animal pens are arranged in an array, with one animal in each pen. a barn can hold at most 10 rows of pens and at most 6 pens in each row, with room for people to walk around them. what different ways can the planners of the county fair arrange the pens for the horses and cows in the same barn?