A firm has a revenue that can be represented by r(x)=800x-0.2x, where r(x) is the total revenue and x is the number of units sold Part A:
Determine the number of units that produce the maximum revenue
Part B:
Determine the number of units that produce no revenue.

Each morning papa notes the birds feeding on his bird feeder. so far this month he has see. 59 blue jays, 68 black crows, 12 red robin's and 1 cardinal. what is the probability of a blue jay being the next bird papa sees

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?