The rounded form of 14,490 feet is 1.449*10 ^4 . You can use calculator for it
318.50 divided by 100% and x30 = 95.55$ it's discount
318.50-95.55=222.95$ is their total bill after discount
The simplest way to think of this is a ratio. In the original 7 cards used for demonstration, 4 are blue. You can write it like this:

Since there are 84 total cards, and you need to find how many total blue cards there are, you can compare the total of the sample to the complete total, and then solve for an x value of total blue cards.

=

You can solve using cross multiplication. 84*4=336. 7*x=336.
x=48
Answer: Fraction form - 333/2
Decimal form - 166.5
Step-by-step explanation: