Kendra bought 162 donuts for $180. Her profit was $30 once she had sold 100 donuts. Which equation below represents Kendra's profit P(n), as a function of the number sold, n? a) P(n)=−1.50n+180
b) P(n)=1.50n−180
c)P(n)=0.30n
d) P(n)=2.10n−180

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

Factor and solve to find roots x squared -x - 90 =0

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.