The data 12, x, 24, 16, and 18 have a mean, average, of 15. Find the value of x. (Hint: Replace the values to determine x.) * What would the answer be ? Thank you:

Sal is tiling his entryway. the floor plan is drawn on a unit grid. each unit length represents 1 foot. tile costs $1.35 per square foot. how much will sal pay to tile his entryway? round your answer to the nearest cent.

Two rigid transformations are used to map abc to qrs. the first is a translation of vertex b to vertex r. what is the second transformation? a reflection across the line containing ab a rotation about point b a reflection across the line containing cb a rotation about point c

The sum of two numbers is 86, and their difference is 20. find the two numbers