Kenya said, "i solved david’s equation in a much quicker way! " she solved the

equation 4(x + 3) = 20 with an approach that she calls "looking inside." here is

how she described her thinking: "i think about everything inside the parentheses as a

group. after all, the parentheses group all that stuff together. i think the contents of

the parentheses must be 5."

a. why must the expression inside the parentheses equal 5?

b. write an equation that states that the contents of the parentheses must equal 5.

then solve this equation. did you get the same result as with david’s method?

The school cafeteria can make pizza for approximately $0.30 a slice. the cost of kitchen use and cafeteria staff runs about $200 per day. the pizza den nearby will deliver whole pizzas for $9.00 each. the cafeteria staff cuts the pizza into eight slices and serves them in the usual cafeteria line. with no cooking duties, the staff can be reduced by half, for a fixed cost of $75 per day. should the school cafeteria make or buy its pizzas?

According to the textbook chapter, “the emotional connection of distinguishing differences and conflict”, which of the following groups of terms describes best the skills/resources that managers need when managing differences in their organization? energy, commitment, tolerance, and appreciation energy, adequate funding, tolerance, and appreciation funding, tolerance, a strong hr department, and tolerance energy, a strong hr department, patience, and strong leadership skills

Because of the violent nature of the sport, professional american football players are at risk of suffering concussions (or brain injuries) during the violent collisions that occur between players during the game. violent collisions involving hits to the head are particularly risky. suppose the commissioner of the national football league (nfl) institutes a rule requiring players to wear a new, lighter helmet that is designed to reduce head trauma during collisions between players on the field. while the new helmets the probability of a concussion resulting from each individual collision, at the same time the new helmets could also give football players an incentive to play more , which could potentially the amount of violent collisions and thus the number of concussions suffered by nfl players, all else equal.