Pizza place sold 93pizzas on monday 67 on Tuesday 78 on Wednesday 44 on Thursday and 123 on friday how many pizzas was sold per day

You add up all the pizzas to get the total amount of pizzas, and you then divide that total by the total amount of days that were involved in the context in this problem. The amount of pizzas sold per day is your answer. The reason as to why you should do the total # of pizzas/total # of days is because you're trying to find the # of pizzas sold/day, which is what will be found by doing that division.