5.) (1/4)^2 x 1/4

(1/4)^2 is just equal to (1/4)x(1/4)

so this is actually: (1/4) x (1/4) x (1/4)

which is equal to: (1/12)

6.) m^50 x m^2

in this case, when the same variables with exponents are multiplied to each other, you just add the exponents

so m^50+2

which is equal to m^52

7.) 7b3 x 4b4

This time, you multiply the number and add the exponents.

so (7x4)b^(3+4)

which is equal to: 28b^7

Hope I helped. :)

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