-3x^2 +10x
All you have to do is combine like terms!
3 celsius is equal to 37.4 Ferenheight
8 = 1. The relationship equation is y = x - 7
If it is about finding the variable you need to distribute for #2 and #3. Get the variable by itself.
The answer is C
Every Biconditional Statement has 'If and only if' in it
Hope this helps :)