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1 and 5 are yes and the rest are no

See explanation

Step-by-step explanation:

67 × 100 = 6700

67 × (10 x 10)      Yes

10 × 10 = 100

67 × 100 = 6700

67 × (10 × 10 × 10)      No

10 × 10 × 10 = 1000

67 × 1000 = 67000

670 × 10³           No

10³ = 1000

670 × 1000 = 670000

670        No

670 ≠ 6700

6700      Yes

6700 = 6700

67000      No

67000 ≠ 6700

Hope this helped!

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d