For the first digit youhave 10 choices. Forbthe second digit you have 10 choices. For the third digit you have 10 choices. By the fundamental counting principle the answer is 10×10×10=1000 ways to form a three digit number.
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Answer:
8+2X is the expression of eight more than the product of two and a number
F(x) = 3x - 2
f(3) = 3(3) - 2
f(3) = 9 - 2
f(3) = 7