During an electronic store's sale days, the regular price for cd players is discounted $10.there is a state sale tax of 5%, and the $10 discount is applied before the sales tax is calculated.

a) write am expression that shows the regular price r of a cd player minus the $10 discount.

b) write a rule for the function p(r) that expresses the final price p of a cd player with the discount applied and sales tax included.

c) how much would you pay during sale days for a cd player regularly priced at $29.50

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

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.