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SIMPLIFY:

The term simplifies to .

Step-by-step explanation:

When we cube a number, we are multiplying it by itself three times.  So, we can think of as .  Multiplying gets us 8, so the coefficient of our final term will be 8.  Now we have the variables.  When multiplying variables with exponents, all we have to do is add the exponents of all the terms together.  So, we add and get 6.  Thus, the variable a is raised to the power.  Adding this to the coefficient yields the answer .

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

answer: 38.47 is your answer

step-by-step explanation: hope i you and who ever sees this answer have a great rest of your day : )