2 2.4.2 Test (CST): Addition and Subtraction of Rational Numbers Question 6 of 10
Which expression would be easier to simplify if you used the associative
property to change the grouping?
A. (21 + (-14)] + (-53)
B. [-12+(-5)] + 36
c. (70 +30) +72
O D. 67 + (3 + (-2)]

Angel entered a triathlon (a three-part race). he swam 1 mile, rode his bike 30 miles, and ran 10 miles. how far did he go altogether? a. 11 miles b. 123 miles c. 41 miles d. 40 miles

Which number line represents the solution set for the inequality -1/2x> 24?

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655