What is the equation of a vertical line passing through the point (-5,-1)

a: y=-5
b: y=-1
c: x=-5
d: x=-1

What value of x will make the triangles similar by the sss similarity theorem?

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

Plz ( true - false) all triangles have interior angles whose measure sum to 90.