Y = 2x + 5 , y = 1/2x + 2. Which ordered pair is the best estimate for the solution to the system? A: (- 2, 1)
B: (0, 2)
C: ( 0, 5)
D: ( -2.5 , 0)

How do you find principle and simple interest

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.