How to add it because i don not know how to do it

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%