$900, but not too sure if this is a question to trick you.
It look like an ad and ads are based on what you watch or if you don’t then previous owner most likely
B. 700
1000 out of 700 is the same as 10 out of 7 but simplified
A cube number is an integer which is a third power of another integer.
A triangular number is a number that counts the objects that can form equilateral triangle (sorry, I cribbed it a little from Wikipedia; it's difficult to explain). Just look at the picture.
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In this question , it is given that
A painter charges by the square foot and charges you $1,875 to paint a 750 square foot rental house.
For 750 square foot, he charges $1875.
So for 1 square foot, he charges
And for 1300 square foot, he charges