Chapter 1, Equations and Inequalities - 1.2 Evaluate and Simplify Algebraic Expressions - 1.2 Exercises - Problem Solving - Page 15: 61d

\$1100, \$1150, \$1200

Here, all we have to do is substitute in the given number for $n$ in our equation $t=10n+1050$. For 5 closed seats...$$t=10(5)+1050=50+1050=\$1,000$$ For 10 closed seats...$$t=10(10)+1050=100+1050=\$1,150$$ For 15 closed seats...$$t=10(15)+1050=150+1050=\$1,200$$