Answer: 0.61
Step-by-step explanation:
Answer:
B 9, -9
Step-by-step explanation:
x^2 - 81 = 0
Add 81 to each side
x^2 = 81
Take the square root of each side
sqrt(x^2) = sqrt(81)
x = ±9
Answer:
75 each month
Step-by-step explanation:
578-128=450
450/6=75
Answer:
87 percent leave room for unexpected variations