Verified Answer :

Write
an expression with the given equation

=> 7 x 10 to the third power.

this equation uses an exponent.

=> 7 x 10^3, in this equation, 10 will be multiplied 3 times as what the
exponent asks

=> 7 x ( 10 x 10 x 10)

=> 7 x 1 000

=> 7 000

Therefore, 7 x 10 to the third power is equals to 7 000. This can also explains
as there are 7 1 000s in 7 000.