A class of 40 students took a math test. 18 of the students had a weighted average of 80. the other students had a weighted average of 70. what is the average score of the whole class?

2 (x+5) + 2 = 3 (2x - 4)

Find the vertex, zero and y-intercept of the graph of y=x^2 - 6x+8

If the probability that event A takes place is 1/5, what is the probability of event A not happening?

A merchant marks his wares 40% more than the real price and allows 20% discount. His profit is? a) 20% b) 18% c) 16% d) 12% e) None of these

Identify the solution set of the inequality using the given replacement set. x < - 3; {-5, - 3.6, - 3, - 0.8, 1, 1.5} a. {-5, - 3.6} b. {-5, - 3.6, - 3} c. {-3, - 0.8, 1, 1.15} d. {-0.8, 1, 1,15}

A prism with a base of 5 ft^2 and a height of 10 ft is dilated by a factor of 6/5

A 4-cup carton of pineapple juice costs $1.56. What is the price per pint?

A golf retailer purchases its clubs from a wholesaler at $44 per club. It sells the same clubs to golfers at $75 per club. What is the markup on each club, as a percentage of the wholesale price?

What property is this (8x5) x 10=8x (5x10)

I have two bags of marbles. The first bag contains 6 red marbles, 5 blue marbles, and 4 green marbles. The second bag contains 3 red marbles, 2 blue marble, and 4 green marbles. I will randomly select one marble from each bag.