The sum of a certain number and 3 times the number is 40. what is the number?

(hurry! ) which expression is equivalent to the following complex fraction?

Correct answer brainliest asap an d 99 pointsss what are relative frequencies to the nearest hundredth of the columns of two way table column a 102, 18 colunm b 34, 14 answers choices 0.15 0.25 0.29 0.44 0.56 0.71 0.75 0.85

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?