Question

functron C(n)=20-lo clair Sold 22 mission Claire works at a store that sus phones, and Shire Cures a commission for each phone she Sells for the nth phone Jain Sulls in a month, her commission C in dollars, is is given by the for how many of those Sales was her commission less than $18?

Answer 1

Given. Cin) : 20 10 n For the 14 phone she sold, sold. her commission is ., 20 - Clo, 10 10 1 nd for the phone , 15 C2) a 10 2 Hence, for phone. 10 eln)20 = 19.5 Now, C(22) 20- 215 11 10 22 Now, she which het 2 = the ath phone for 18 less than commission gch 18 Y 10 26 10 10 20 -18 < 2 2<5 4 7 6 2 1 / 2 vilo 20 - When ༡ :5) C [5] Hence.. 24-1 9 alumber of sales for which her Commission less than is