Mixed numbers from 4 to 6 with an interval of 1/4 between each pair of mixed numbers

Solve the system of equations. y= 2x y= x^2 - 15

State if the two triangles are congruent. if they are, state how you know?

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.