Answer:
Equation of the parabola:
or 
Vertex form: 
Intercept form: 
Step-by-step explanation: hope this helps please give brainlieat!
Answer:
54%
Step-by-step explanation:
Divide 4943/9014 and multiply by 100 to find percentages.
210 because 7th graders washed 12 cars, 8th graders washed 14 cars, 6th graders washed 16 cars. Added all together and multiplied by 5, it equals 210
It totally depends on the value of 'a', and if 'a' changes, then (6a-2) immediately changes too. Whatever 'a' is at the moment, (6a-2) is 2 less than 6 times 'a'.