80x10=800 so thats the answer 10 because her friends and herself
You have to first subtract seven from five to get -2. your equation will now be x over four equals negative two. multiply the four by negative two and you'll get -8 equals x
Subtract 2.1 to both sides:
It's probably A (I can't tell you for certain, because I can't see the image, but the other options seem illogical).
The gradient for a parallel line is the same.
perpendicular lines are negative reciprocals.
so all you have to do is re arrange it so y=Mx+b so the check out the gradients to what I listed above... remember y shouldn't have any number on it.