Help please ASAP please

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%

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup