PLEASE HELP! Choose the expression that is NOT equivalent to the following expression: 45y + 99

5(9y + 19.8)

9(5y + 11)

2(22.5y + 49.5)

4(11y + 22)

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

The area of square garden is 300m squared. how long is the diagonal?

Nikolas calculated the volume of the prism. his work is shown below.