The factor of the expression
is
To answer the question, we need to know what factorization is
<h3>What is factorization?</h3>
Factorization is the process of breaking down an expressing into a simpler form containing its factors.
Since

Since
is common, we factor it out. So, we have

Expanding the bracket, we have

So, the factor of the expression
is
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The answer is
B) 2n - 5
because it's -5 than twice the width (2n)
You could multiply 19.45 by 0.2 to solve for it, but if you're not using a calculator, then 19.45/5 would be much more convenient and easier.
0.2 is 1/5 in fraction form, which is why we can do that.
19.45/5 = 3.89
Dino should leave $3.89 as a tip.
let the speed of plane in still air be x and that wind be y
therefore:
x+y=490
x-y=390
next we solve for the values of x and y, first we add the above equations. This will give us:
2x=880
x=880/2
x=440 miles per hour.
substituting the value of x in one of the equations and solving for y we get:
440+y=490
y=490-440
y=50 miles per hour