Answer:
he has 2 dollars
Step-by-step explanation:
10 * 10$= 1$
4 * 25$=1$
1$+1$=2$
d.(x - 9) (x - 3)
Step-by-step explanation:
x² - 12x + 27 = 0
x² - 9x - 3x + 27 = 0
x(x - 9) - 3(x - 9) = 0
(x - 9) (x - 3) = 0
If you divide a fraction over a number, you can just muplitply the denominator (the number under the line) by the number by which you divide:

99 and 21 are divisible by 3, so we can divide them both by it:

but that's all we can do!
so let's multiply

and it's its simplest form