Samsung is also in the business of selling phones. The data for the profit that Samsung makes on selling tablets is represented by the following equation and "P(b)" and "b" being the number of blackberry phones sold (both variables in millions): − x^2 − 6 x + 8
Use the quadratic formula to solve the equation. Is the vertex a maximum or minimum point? Describe what the vertex means in terms of this problem. SHOW ALL WORK!!

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u.s. dollars for every 100 euros. b. gabriella averages 100 u.s. dollars for every 25 euros. c. gabriella can exchange 75 u.s. dollars for 100 euros. d. gabriella can exchange 100 u.s. dollars for 75 euros.