Mid-west publishing company publishes college textbooks. the company operates an 800 telephone number whereby potential adopters can ask questions about forthcoming texts, request examination copies of texts, and place orders. currently, two extension lines are used, with two representatives handling the telephone inquiries. calls occurring when both extension lines are being used receive a busy signal; no waiting is allowed. each representative can accommodate an average of 12 calls per hour. the arrival rate is 20 calls per hour.(a) how many extension lines should be used if the company wants to handle 90% of the calls immediately? (b) what is the probability that a call will receive a busy signal if your recommendation in part (a) is used? (c) what percentage of calls receive a busy signal for the current telephone system with two extension lines?

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.

.there can be infinite values of m and n that can satisfy the above equation. for each value of m of m or n. there maybe infinite sets of solution for the above

step-by-step explanation:

hi how are you doing today? if you ever need just tell me

step-by-step explanation:

$2416.6

step-by-step explanation:

per hour = $ 25

total work time = 35

commission = 15%

total she has to make = $ 4,500

let she sold x dollar products

so her commission will be 15 % of x

now

total = weekly basic pay + commission

4500= (25*35) + 15 % of x

4500=875 + * x

4500-875 =   * x

3625= * x

multiplying wwith 100 on both sides gives

36250 = 15 x

now

x =  

x= $2416.6