Answer:
Its commutative property
Step-by-step explanation:
It means u can move stuff around so ya
-15(2x + 3) = -27
5(2x + 3) = 9
10x + 15 = 9
10x = -6
x= 0.6
Answer:
sum_of_interior_angles = (number_of_sides - 2) x 180° → if number_of_sides is 21: sum = (21 - 2) x 180° = 19 x 180° = 3420°
Step-by-step explanation:
Step-by-step explanation:
Since, y varies directly as x: