Eric has 240 coins in his collection.11over 20 of the coins are pennies.4 over 20 of the coins are quarters. how many of the coins are quarters? examples how you found your answer ? ?

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25

Exclude leap years from the following calculations. (a) compute the probability that a randomly selected person does not have a birthday on october 4. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability that a randomly selected person does not have a birthday on the 1st day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability that a randomly selected person does not have a birthday on the 30th day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (d) compute the probability that a randomly selected person was not born in january. (type an integer or a decimal rounded to three decimal places as needed.)