There are 80 classrooms in a building, 50 classrooms have Multimedia system, 31 classrooms have a Smart Board system, and 13 classrooms have both Multimedia and Smart Board. a) Draw a Venn diagram to represent the given information.

b) Do you need to make any changes to your Venn Diagram if there are 67 classrooms in
the building? Explain your answer.

answer: it is d

step-by-step explanation:

answer: 30

step-by-step explanation: its 30 because im a basketball player and stephen curry hits most of his shots so if you put 30 you might make the shot goodluck

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

the answer is 18 units because there are 18 small cubes inside the rectangle

hope this and p.s i am also in k12

step-by-step explanation: