4. 5^4 x 5^7
a. 125^11
b. 15^11
c. 5^28
d. 5^11

When multiply 2 numbers raised to a power,

Just all the  two exponents

4 +7 = 11

So 5^4 x 5^7 would become D. 5^11

a

step-by-step explanation:

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