What is the justification for step 3 in the solution process?
0.8a − 0.1a = a − 2.5
step 1: 0.7a = a − 2.5
step 2: -0.3a = -2.5
step 3: a = 8.3

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

Question b of 10which of the following describe an angle with a vertex at a? check all that applyo a. labcов. савd dooo c_baco d. zacb

X2 + y 2 = 36 x + y = 6 solve the system of equations.