Solve the system of equations using substitution
4x + 2y = 16
=−12+5

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

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g