Khalid charges $10 for one year subscription to his online newsletter clear currently has 69 subscribers and estimates for one dollar decrease in subscription price he would gain 100 new subscribers what subscription price will maximize Kaleece income if he charge the price how much income do Khalid Expect

answer:

689,000

Step-by-step explanation:

10 x 69 -1 =689 x 100=689,000?

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500