Rewrite using a single positive exponent.
7^9 x 7^-2
1 answer:
Answer:
7^7
Step-by-step explanation:
When you multiply exponents with the same base, you add the exponents
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tax = 7% of $45.09 = 0.07×$45.09 ≅ $3.16
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the surface area is 133cm.
7 x 7 is 49
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