Please help me. Please.

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet