Selling price of app per user = $10 per month
Total no. of user in first month = 10
To tal no. of user added per month = 7
We have to find how much money is earned in one year
So the formula is n/2 * (2a +(n-1)d)
Here we have n = 12 which is total no. of months
a = 100 , which is money earned in one month
d = 70 , which is increase in money earned per month
So money earned in a year comes out to be 5820
The answer to 22 is C) One person caught fewer that 3 fish.
Answer:
150
Step-by-step explanation:
30/100 times 500/1 = 150
Answer:
√10,−√10
Step-by-step explanation:
award brainliest
Answer:
90
Step-by-step explanation:
100%-10%=90%
90%->81
10%->9
100%->9+81=90
