Answer:
the expression is: 
and 2730 different ways are possible.
Step-by-step explanation:
In the given question we have to choose a president, vice
president, and secretary.
Permutations are used when order is important so, as in the given question order is required. We would use permutations
The formula used is:
where:
n=total number of objects
r=number of objects selected
In our case: n=15, r=3
Putting values and finding the answer:

So, the expression is: 
and 2730 different ways are possible.
(5.15 pound) x (3.40 buck/pound) = <em>17.51 buck</em>
Answer: 2x + 15 = 243
x = $114
Step-by-step explanation:
Gas Tank: $15
Matthew: x
Devin: x
Gas Tank + Matthew + Devin = Total
15 + x + x = 243
2x = 228
x = 114
Answer: 102.144
Step-by-step explanation:
128 times 0.25 = 32
128 - 32 = 96
96 times 1.064 = 102.144
So, she will pay 102.144
Answer:
hi or high
Step-by-step explanation:
so you right the world h and i and cobine them to make hi or high same thing