The sale price S (in dollars) of an item is given by the formula S=L-rL , where L is the list price (in dollars) and r is the discount rate (in decimal form). a. Solve the formula for r . r= b. The list price of the shirt is $30. after the discount rate its $18. What is the discount rate? The discount rate=

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Your client has saved $1,860 for a down payment on a house. a government loan program requires a down payment equal to 3% of the loan amount. what is the largest loan amount that your client could receive with this program

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.