What is a 5% increase from $79?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

The tile along the edge of a triangular community pool needs to be replaced? ?