Answer:
a= -3, b= -5, c= -1
Step-by-step explanation:
Quadratic Equation: 
Hope this helps!
Answer:
3 courts
Step-by-step explanation:
8,000 = 1 court
24,000 = x courts
8,000 x ? = 24,000
8,000 x <u>3</u> = 24,000
1 x 3 = 3 courts
Change the ratio into a fraction
56:80 is the same as 56/80
Divide, make it a decimal
56/80 = 0.7
0.7 = 7/10 or 70/100
70/100 = 70%
70% is your answer
hope this helps
72:80
9:10
Divide 72 and 80 by 8 to simplify it and get the ratio
7.71 feet is your answer.