What is the solution of the equation? i also need with this one .

15 = -x/5 ( it's a fraction)

a) -75

b) 3

c) -3

d) 75

Ineed asap. i cant understand this question i need someone to me right away

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?

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.