Answer:
Step-by-step explanation:
<u>Answer:</u>

<u>Explanation:</u>
let the number be x, now we are given that four times the cube of a number which means four multiplied by the cube of number
i.e 4 multiplied by
is less than the difference of 40 and the number x i.e 40 - x
x is for sure less than 40 as
is less than the difference between 40 and x so if we write x - 40 then we will obtain negative value which will be greater than
.
So, the inequality obtained can be written as 
You use the formula given and it usually involves dividing
Answer:

Step-by-step explanation:





For the Interval 
Length of the Curve 
Using T1-Calculator

Convert the percent to a decimal (0.055) Now multiply by the price
24.99 • 0.055 = 1.37