Two rectangular prisms have the same volume. the area of the base of the blue
prism is 2-square units. the area of the base of the red prism is one third that
of the blue prism. which statement is true?

Therefore the true statement is that the height of the red prism is three times the height of the  blue prism.

Step-by-step explanation:

i) Volume of blue prism = (base of blue prism) (height of blue prism)

ii) base of red prism  = (base of blue prism)

iii) Volume of red prism = (base of red prism) (height of red prism)

                  = (base of blue prism) (height of red prism)

iv)  Volume of blue prism = Volume of red prism

   ∴  (base of blue prism) (height of blue prism) =   (base of blue prism) (height of red prism)

∴height of blue prism =    (height of red prism)

Therefore the true statement is that the height of the red prism is three times the height of the  blue prism.

you can't solve x because it is 2 linear equation and you only have one equation

47 - 90 = 43

43 - 180 = x

x = 137