Joleen buys a box of 15 candy bars for 10 dollars. She then sells those candy bars to her friends at school for 2 dollars each. The profit that Joleen makes is given by the function
P(c)=c-

where c is the number of candy bars that she's sold.

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.

Carbon- 14 is a radioactive form of carbon found in all living plants. after a plant dies, the carbon- 14 disintegrates. samples of similar living plants are used to determine the age of the remains. the amount of carbone-14 present after t years is given by the exponential equation n(t) = noe where no is the initial amount of carbon-14. the half-life of carbone-14 is 5600 years. charcoal from an ancient fire pit contains one third of earbon-14 found in similar living wood of the same size. find the age of the charcoal half-life is the time required for a quantity to reduce to half its initial amount

The scale drawing can be used to approximate the area of a bulletin board. there are 100 pushpins in the area shown. what is the density of the pins on the board? round to the nearest tenth.