Each hour is worth $7.5, it will take 60 hours
Answer:
t
Step-by-step explanation:
323rd century fox news has been in the past year and it is a different
Let
x---------> the rate of the boat in still water in mph
y--------> the rate of the current in mph
we know that
Upstream

equation 
Downstream

equation 
Adds equation
and equation 

Find the value of y

therefore
the answer is
the rate of the boat in still water is 
the rate of the current is 
First, we need to calculate the cost of the sale tax. To do it, we are going to convert the sale tax from percentage to fraction by dividing it by 100, and then we are going to multiply the cost of the DVD by the sale tax:

Now, we can multiply the cost of the DVD by the sale tax to find the cost of the sale tax:

Now that we know that the sale tax is $1.26, we are going to add the cost of the sale tax to the cost of the DVD and check if that sum is less or equal than Torri's money (20$):

Since $19.26
$20, we can conclude that Torri has enough money to buy the DVD. In fact, Torri will end with a change of $0.74 after buying the DVD.