Answer:
A, D, and G
Step-by-step explanation:
Let's try each of the answer choices, one by one.
A) Plug x = 2 into each expression and see what we get.
7x + 4 = 7 * 2 + 4 = 14 + 4 = 18
3x + 5 + 4x - 1 = 3 * 2 + 5 + 4 * 2 - 1 = 6 + 5 + 8 - 1 = 18
Since they're both 18 when x = 2, A is true.
B) The statement says that the expressions are <em>only </em>equal for x = 4 and x = 8, but as we saw from A, they're also equal when x = 2, so B is wrong.
C) Let's try to find a counterexample for this by plugging in an odd number into each expression, like 1:
7x + 4 = 7 * 1 + 4 = 7 + 4 = 11
3x + 5 + 4x - 1 = 3 * 1 + 5 + 4 * 1 - 1 = 3 + 5 + 4 - 1 = 11
We see that these two expressions are equivalent when x = 1, which is an odd number, so this contradicts the statement that they're <em>only</em> equal when x is even. C is wrong.
D) Let's combine like terms for the expression 3x + 5 + 4x - 1:
3x + 4x + 5 - 1 = 7x + 4
Notice that this is the exact same expression as the first one, which is 7x + 4 so that means for any x, these two expressions will always be the same. D is thus true.
E) This is not true because it's possible that two expressions aren't equivalent but have the same value for a certain odd number and a certain even number. E is incorrect.
F) Obviously, if the two expressions are equivalent, they will give the same answer for any input of x, including when x = 0, so F is wrong.
G) Again, the two expressions will always be equal, including when x = 8, so this statement is true.
The answers are A, D, and G.
Hope this helps!
of the bathtub in one minute and faucet two fills up 
of the bathtub in one minute. If both are one then they will fill up 
So, 1/6 of the bathtub in one minute.