What is the sum of the given polynomials in standard form?

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

What rotation was applied to triangle def to create d’e’f’?

Abaseball team drinks 10/4 gallons of water during a game. which mixed number represents the gallons of water consumed? a) 1 1/2 gallons b) 2 1/2 gallons c) 2 3/4 gallons d) 3 1/2 gallons