Answer:
81 blue cars
Step-by-step explanation:
Total Cars = 90
How much % are blue = 90
=> 90 x 90/100 = How many cars are blue
=> 8100/100 = the number of cars that were blue
=> 81 = cars that were blue.
There 81 blue cars in the parking lot.
It's irrational because it's not repeating or terminating decimal.
d=26
≈530.929158457
$960
price of one month = total expense/ number of month
= 240/3= $80
therefore persons annual expenses = 80*12= $960