In triangle abc, angle c is the right angle. which statement is always true? a. sin(a)=cos(a)
b. sin(a)=cos(b)
c. sin(a)=cos(c)

Can somebody me out with this question

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults. how many students and adults went if the ticket charge was $42.75