(-3, -2) is the vertex.
You can find this by plugging into -b/2a to find the x value and using the x value to find the y value.
And another spot on the vertex would be (0, 16), which is the y intercept.
122/360 which can be simplified to 61/180 which 34% chance.
You need to give more info so like show more of the question
30+5=5+30 with commutative property or 30+5=35