Chapter 1 - Foundations for Algebra - 1-3 Real Numbers and the Number Line - Practice and Problem-Solving Exercises - Page 22: 75

16

Work Step by Step

We follow the instructions to plug 11 in for r and 7 in for t, and then we simplify using the order of operations. According to the order of operations, we simplify inside of parentheses, then we simplify powers, then we multiply and divide, and finally, we add and subtract. When we do this, we find: $(11-7)^{2} =4^{2} =16$

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