-45+18x is the answer
Hope this helped <3
Answer:
nothing
Step-by-step explanation:
a product of 2 positive numbers always shows a positive value if we add them
The divide and simplify of the equation √36 x⁴ / √9 x⁶ will result to 
Let's begin by simplifying the equation;
Simplify the equation by finding the square root of both 36 and 9
The square root of 36= 6
The square root of 9= 3
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The above equation can also be written as;
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The next step is to solve the powers, that is,
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Cancel out 6 by 3 and get 2
The result is,
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The final submission result is,
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To find more on divide and simplify, go to: brainly.com/question/16356152
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To find the age of tom we will use the expression 20*3 because tom is three times as old as Sam.
so the answer is 60