Liang is ordering new chairs and cushions for his dining room table. A new chair costs $88 and a new cushion costs $12. Shipping costs $34. The expression 88c + 12c + 34 gives the total cost for buying c sets of chairs and cushions. Simplify the expression by combining like terms.
Mr. Ruiz writes the expression \(5\times(2 + 1)^{2}\div3\) on the board. Chelsea says the first step is to evaluate \(1^{2}\). Explain Chelsea’s mistake. Then, evaluate the expression