Which set of angles are supplementary

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re