I believe the correct answers from the choices listed above are options 2 and 5. Algebraic terms are separated by addition and subtraction. Each term in an algebraic expression is separated by a + sign or J sign. Hope this answers the question. Have a nice day.
The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm