Answer:
Option A 
Step-by-step explanation:
we know that
The volume of a cone is equal to

In this problem we have

substitute the values


((–7) + (3 + i)) - (2 - (6 + i)) =-9 + 9 i
y=mx+b is the equation of a line;
m=slope , b= y-intercept
m=4 ; so we have : y=4x+b
We are give a set of points which it passes through, we can simply plug them in:
-2 = 4(3)+b (3 is the x and -2 is the y)
We get -2 = 12 +b .... -14=b
our final equation is : y=4x-14
Answer:
Not sure if this is right, but I got $40.8.
Step-by-step explanation:
I first turned 20% into a decimal. (0.20).
Then I multiplied 0.20 and 34 which is 6.8.
I then added 34 since it’s the original cost to 6.8 since that’s the tip amount.
After that, you should get $40.8.