When multiplying numbers with exponents, you have to add the exponents. So 4r^3×2r^2 equals 8r^5.
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Hello!</h2>
The answer is: The correct dose of medication to give is 5.6 mL
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Why?</h2>
To solve this problem we need to establish a relationship between the prescripted medication and the available solution.
Let's write the needed equations to establish the relantionship:

The available solution means 125 mg each 5 mL of solution, so:

Hence, the correct dose of medication to give is 5.6 mL of the 125 mg/5mL solution.
Have a nice day!
Answer:
x= -3
Step-by-step explanation:
Answer:
11%
Step-by-step explanation:
We have been given that
Principle = Rs 2350
Time = 2 years
Total amount = Rs 2867
Therefore, Interest earned is given by
I = Total amount - Principle
I = 2867 - 2350
I = Rs 517
Formula for simple interest is

Therefore, annual rate of interest is 11%
Coefficients are the numbers that are next to a variable(a letter in an expression). Therefore the coefficients would be 7 and 18 because they are both next to a variable (y and x).
I can’t exactly remember what a constant is but I think it is a number alone (not next to any variables) and they are ONLY separated by + and - not multiplication or division. In this case it would be all of the numbers that are in between the + or - (all of them.)
I also think a constant could be the variable next to the coefficient. Which would be y and x (next to 7 and 18).
I’m am so sorry I can’t remember what a constant is but I hope the coefficient helps:)