How many different keys can be made for a lock that has 8 tumblers with 4 possible heights each?

4^8 does NOT work.

Is there something I am missing?

Write the expression 5 - 9 in two different but equivalent forms.

7-4+3x0+1 = How to solve this problem

If area of rectangle is 900 and length is 100 what is the width

the temperature was 8F. it dropped so that the temperature was 0F * blank*F represents the change in temperature

What is the domain of 6x+7/9x+2

Solve for x: -4x + 8 = 42 x =

Hey skydiver pair shoes to the ground. The height Y (in feet) of the skydiver after X seconds is y=-10x + 3000 A) Interpret the X intercept and slope

A deposit of $12,000 is made into a savings account which earns 4 3/5 % interest compounded quarterly. If no additional deposits or withdrawals are made, which amount is the total balance at the end of 3 years? A) $13,733.34 B) $13,754.19 C) $13,764.

A rope is 54 inches and must be cht into two pieces. If one piece must be twice as long as the other, find the shortest piece

A vending machine takes only nickels and dimes. there are 5 times as many dimes as nickels in the machine. the face value of the coins is $4.00. how many of each coin are in the machine?