My last question i need to do on my : d would be appreciated!

val says that the model below represents the equation -2x+7 = 3x+(-4)
tia says that the model represents the equation 7-2x = (-4)+3x

who is correct, val or tia?

a: only val is correct.
b: only tia is correct.
c: both val and tia are correct.
d: neither val nor tia is correct.

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p. mc) knowing that it is going to rain tomorrow, and going to bed before 9 p. md) knowing that you have a test in school tomorrow, and studying thw night before