The total revenue r earned (in thousands of dollars) from manufacturing handheld video games is given by
r(p) = -25p2 + 1700p
where p is the price per unit (in dollars).
find the unit price that will yield a maximum revenue.

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

If johnny ate 5 cans of sugar, but in the kitchen they only had 3. what did johnny eat? (he found a secret stash btw.)