How can you use models to evaluate and compare expressions

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Ten times the square of a non-zero number is eqaul to ninety times the number

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell