The answer is A. (1, 4), because when the values are substituted in to the equations, you get 1 = 4 - 3 and 1 + 12 = 13, which are both correct. I hope this helps!
(3x86)+(9,538+629) = 10,425
Hope this helps

so, the 2.5oz cake will be "x" calories, pheeew, she'll be taking in 900 - x less calories.
Triangle: 13.3 km Why: the formula is 1/2 base x height.
Square: 57.4 Why: 7x8.2 which equals 57.4
I don’t understand this question