The function that is growing at the fastest rate is p(x) = 12x^3 + 9.
This is a cubic function, meaning that x is raised to the third power. This is the only function that is raised to the third power, so it will increase the fastest.
The least common multiple of 5 and 10 is 10. Convert 4/5 and 9/10 to fractions with denominators of 10.
Since 8/10 and 9/10 have the same denominator, join their numerators to add them.
Simplify
Percents are out of 100, so 20% is the same thing as 20/100 or 0.2 as a decimal. To find how much he saves from the coupon, multiply the cost of the markers by 0.2.
2.85 * 0.2 = 0.57
The answer is $0.57
yes, the most simplified version would be 40/9
in decimal form this is 4.444444
