A football team loses 3 yards on each of 4 consecutive plays. Find the total change in yards from where the team started.

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

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.