Answer:
4
+9x+2
Step-by-step explanation:
You combine the
terms, the x terms and the constants (the terms without variable/letters)
Answer: The answer is C.
Step-by-step explanation:
So speed = distance / time
15 minutes is 0.25 of an hour
24 hours in a day
2015.3/24.25
83.1051546 mph
or 83 mph
The expression Joelle should use to find the tip amount is 38(0.20).
<h2>Expression
</h2>
In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations that are formed according to rules which are dependent on the context.
<h2>Given to us</h2>
Percentage tip of Joelle hairdresser = 20%,
Joelle's haircut costs = $38,
<h3>Percentage Conversion</h3>
As we know that percentage shows a part of something, therefore,

Hence, the expression Joelle should use to find the tip amount is 38(0.20).
Learn more about expression:
brainly.com/question/13947055
Take the square root of 49 which is 7 (the length of each side), then multiply 7 by the number of sides which is 4, so you would get 28 as the perimeter. Hope this helps :)