Answer:
3.9mm
Step-by-step explanation:
how much taller is a stack of 3 nickels than 1 nickel
1 nickel is 1.95mm high, 3 nickel is 3 x 1.95 = 5.85mm high,
make a difference and find out how much higher is a stack of 3 nickels than 1 nickel.
5.85 - 1.95 = 3.9mm
