Should be 11.25 because 15 is 1/4 of 60 . U take 1/4 away from 60 so u gotta take 1/4 away from 15 which is 3.75 . And you get 11.25
-20+13=-7 , -7 multiplied by -3 equals 21
Answer:
3g^2 (2g^6-g^2+3) the ^ symbole is means to the power
Step-by-step explanation:
Look up "sum of interior angles of a polygon" on Google. There you will find a formula for predicting the number of interior angles that a given polygone will have. This formula is <span> (n - 2) × 180°, where n represents the number of sides of the polygon in question. Count these sides. Substitute your value for n into this formula. The interior angles of your polygon add up to the result of evaluating this formula. Call this "sum." Then:
"sum" = (the one unknown interior angle) + (the sum of the given (known)) interior angles).</span>
We need more info this question is confusing
