Part A:
at the time x=4, the elevation = 3
at the time x=8, the elevation = 6
and 6-3=3in.
PART A ANSWER= 3in.
Part B:
the time period will be when the slope (y=mx+b) is the steepest. this would be from t=14 to t=18.
so, y=7.5-3= 4.5
ANS=4.5
You'll need to use parentheses here to convey this problem accurately to possible helpers. Unsure of whether you mean (9/2)k -3 or 9 / (2k-3).
I will assume that you mean:
9 4
------- = ---------
2k-3 k+1
Cross mult: 9k+9=8k-12, so k= -21.
If that's not what you expected, then try again to present the problem without ambiguities.
Your answer is C :) blessings
Answer:
The total cost is $345
Step-by-step explanation:
Zoe purchased a barbecue grill originally priced at $600
Discount % = 50%
So, cost after discount = 
Cost after discount =300
Sales tax in Fairfax is 15%
So, cost including tax = 300+0.15(300)
Cost including tax = 345
Hence The total cost is $345
