Answer:(0,6)
Step-by-step explanation:
Solve for Y if X =0
y=2x+6
Y=2(0)+6
Y=6
320 = 2x² - 12x as when there are an unknown number of rows there are 320 seats.
0 = 2x² - 12x - 320
0 = x² - 6x - 160
0 = (x - 16)(x + 10)
for this to = 0 one bracket must equal 0
therefore x = 16 or x = -10
not a negative number of rows.
Therefore must be 16.
By using the base change formula, which states

The given equation is 
By substituting the values of log 5 and log 3.

= 1.46
Answer:
60 second
Step-by-step explanation:
6km into minutes
1 minutes is 60 second
90- 22 = 68
68 divided by 18 = 4
So the greatest number of dvds she can by is 4