ANSWER:

STEP-BY-STEP EXPLANATION:
Rational numbers are all numbers that can be expressed as a fraction, that is, as the quotient of two whole numbers.
Therefore, an example would be:
B=8.5 all that you have to do is add the inverse of the number that's no b
Answer:
OK so the equation has a exponent so if there is a exponent then you need to multiply. since 227 is the Area and the exponent is 2.
Step-by-step explanation:
<h3>
<em><u>a</u></em><em><u>)</u></em><em><u> </u></em><em><u>a+a+a+a+a+a</u></em></h3>
<em><u>=(a+a+a+a+a+a)</u></em>
<em><u>=</u></em><em><u> </u></em><em><u>6a</u></em>
<h3><em><u>b. 5x-4x+10x</u></em></h3>
<em><u>=(5x+−4x+10x)</u></em>
<em><u>=</u></em><em><u> </u></em><em><u>11x</u></em>
<h3><em><u>c. 9t+3t-6t</u></em></h3>
<em><u>=(9t+3t+−6t)</u></em>
<em><u>=</u></em><em><u> </u></em><em><u>6t</u></em>
<h3><em><u>d. -5j+11j+j</u></em></h3>
<em><u>=(−5j+11j+j)</u></em>
<em><u>=</u></em><em><u> </u></em><em><u>7j</u></em>
<h3 />
The Answer to this Question is:
(2x^2+3y)(4x^4-6x^2y+9y^2)
This symbol ^ means that the number after is an exponent.