2x+5= -x+(-1). what was the first step

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

Which math sentence can be used to determine if the triangle is a right triangle?

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.