Work out the lengths of sides a and b. Give your answers to 1 decimal place.
17 cm
a
a
b
8 cm
12 cm
5 cm

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%

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=