The equation which represent total amount of income he earns from selling book is, 
Since, Selling price of one novel is n dollars
So, selling price of b books is, 
Since, he receives 9% commission on each book sale.
So, total commission he receives on selling of b books is,

And also he received a bonus of $50,000 to sign the contract to write the book,
So, total amount of income he earns is represented by A,

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brainly.com/question/7852218
The number of cubes that will fit into the shoebox is 40 cubes
<h3>How to calculate the volume of a box</h3>
Volume is the measure of a substance an object contains
Volume of the box = length * width * height
Volume of the box = 5/4 * 1 * 1/2
Volume of the box = 5/8cubic unit
<u />
<u>Determine the volume of the box </u>
Volume of the box = l³
Volume of the box = (1/4)³ = 1/64 cubic units
Number of cubes = (5/8)/(1/64)
Number of cubes = 5/8 * 64/1
Number of cubes = 5 * 8
Number of cubes = 40 cubes
Hence the number of cubes that will fit into the shoebox is 40 cubes
Learn more volume of cube here: brainly.com/question/1972490
Answer:
(a) = 13,500
(b) = 2,250
Step-by-step explanation:
Matching Step 3 with Step 2, we see that ...
(a) = 3x^2·y
(b) = 3x·y^2
Filling in the values given for x and y, we have ...
(a) = 3·30^2·5 = 13,500
(b) = 3·30·5^2 = 2,250
24.6667
round it, it'll be 25
Root: (0, 0)
Domain: x=R
Y= (0, 0)