Answer:
x = 7
Step-by-step explanation:
The sum of interior angles is equal to 360°
9x - 4 + 8x + 2 + 13x + 30 + 19x - 11 = 360° add like terms
49x + 17 = 360 subtract 17 from both sides
49x = 343 divide both sides by 49
x = 7
replace x with the value we found to calculate each angle.
When a number has an exponent of 2 by it (x^2) , it means it's squared and that's it
I think.....
So, 10^6 = 1,000,000 and 25*1,000,000 is equivalent to 25,000,000.
