I'd start by listing out the multiplies of all three past 100, like this:
102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130
104, 108, 112, 116, 120, 124, 128, 132, 136
110, 120, 130, 140
Now it's just a matter of finding the number that is the same for all three of them, which is 120.
The two expressions that represent the retail price of cars is: Retail price = 1.21c and Retail price = c + 0.21c
<em><u>Solution:</u></em>
Given that,
Rick buys remote control cars to resell
He applies a markup of 21%
Let "c" be the original price of remote control cars
To find: Expression for retail price of car
We know that,
Retail price = original price + markup
Here, markup price = 21 % of original price
Markup price = 21 % of c
Therefore, substituting the given values we get,
Retail price = c + 21 % of c

This can also be expressed as,

Thus two expressions that represent the retail price of cars is: Retail price = 1.21c and Retail price = c + 0.21c
Answer:
The answer would be C.
Step-by-step explanation:
You can tell that the triangle is a right angle by the box in the corner which makes it 90 degrees so 7x+11x would equal 90
Answer:
b=-108
Step-by-step explanation:
To solve this equation for b, you simply multiply each side by 18. The reason you do this is to isolate the b.


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Answer:
x= 5
Why?
Look the pic, there is the explanation