Answer
700 cm
Work Step by Step
Put the unit for the answer (centimeters) in the numerator of the unit fraction; put the unit you want to change (m) in the denominator.
Unit Fraction equivalent to 1 = $\frac{100 centimeters}{1 meter}$
Multiply 7 m times the unit fraction.
7 m * $\frac{100 centimeters}{1 meter}$ = 700 cm