What is the product in lowest terms? -5/12*8/13

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Given the statements, "a square root of 16 is 4," and "a square root of 9 is -3," complete the following blanks with the correct truth-values. p is and q is , so the statement, "a square root of 16 is 4 or a square root of 9 is -3" is .

1. are the triangles similar and if so why? what is the value of x? show your work.