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Home > MC1 > Chapter 9 > Lesson 9.1.4 > Problem 9-43

9-43.

Think of this as 2(10% of $400) + 2(1% of $400).

10% of $400 is 40.
1% of $400 is 4.

Think of this as 2(10% of $35) − (1% of $35).

10% of $35 is 3.5.
1% of $35 is 0.35.

Think of this as 9(10% of $130) + 4(1% of $130).

What is 10% of $130?
What is 1% of $130?