Which expressions are a sum of two terms?

Select all the correct answers.

1, 2t
2.(22)(X)
3.4+3m
4.6n+2+p
5.2x+3y

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?

What is the perimeter of an equilateral triangle if each side is (x+3)?