3 rays have common vertex. All the angles, which are made by neighbor rays( I think they mean adjacent rays), can be: a)acute
b)obtuse
c)right
d)none of it.

btw I checked answer, but I still didn't understand, so I need explanation.

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

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.