Find the geometric mean of 10 and 18. if the answer is not a whole number leave it in the simplest radical form

What is the size of the matrix resulting from

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7