Does anyone know how to do this? how do you know if you do just 150=4x-6 or 150+4x-6=180? i don’t understand how to tell which one to use and i’m really struggling

Simplify the expression. -2/5(10+15m-20n)

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm

Define the type of sequence below. 7, 14, 28, 56, 112, a. neither arithmetic nor geometric b. arithmetic c. both arithmetic and geometric d. geometric