How many solutions does the system formed by x - y = 3 and ay + 3a = 0 have for a non zero number a? explain and show how you get the answer

—the graph shows how fast a strand of human hair grows. how many inches would the hair have grown in 5 months

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

Line gh passes through points (2, 5) and (6, 9). which equation represents line gh? y = x + 3 y = x – 3 y = 3x + 3 y = 3x – 3