Which function rule is represented by the table?

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?

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25

What is the length of ac in the given triangle?