How many ordered pairs (x, y) of positive integers satisfy the inequality 4x + 5y < 20?
1 answer:
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9514 1404 393
Answer:
D. 81/m^7
Step-by-step explanation:
The applicable rules of exponents are ...
(ab)^c = (a^c)(b^c)
(a^b)^c = a^(bc)
(a^b)(a^c) = a^(b+c)
a^-b = 1/a^b
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Using these, your expression simplifies to ...
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