GIVING BRAINLIST If x + 2y = 8 and x/2 -y= 10, then x = ?
A)-3
B) 0
C) 10
D) 14

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

I’m still confused on how to work the percentages