100 pts for truly honest ansewr correctly identify the property shown. (−5.2+(−8.4))+(−2.8)=−(5.2+8.4)+(−2 .8)

What is the first quartile of the data set? 10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38 a. 12 b. 19 c. 29 d. 10

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

What is the absolute value of the complex number -4-sqrt2i