When solving the equation 4x + 5 = 30 what should you do to both sides of the equation? A. subtract 5 and then divide by 4
B. divide by 4 and then subtract 5
C. add 5 and then multiply by 4
D. multiply by 4 and then add 5

Icould really use some with this question.

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute