1. simplify the expression. show your work. 22+ (32 – 42)

First you have to simplify whats in the parentheses:
22 + (-10)
= 22 - 10
= 12

22(32-42)
32-42
-10
22-10
12

Rounding decimals is very similar to rounding other numbers. if the hundredths and thousandths places of a decimal is forty-nine or less, they are dropped and the tenths place does not change. for example, rounding 0.843 to the nearest tenth would give 0.8. , your welcome !