Find the area of the triangle. Enter your answer in the box. I really need help with this, the image is below

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?

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?