Which property is demonstrated by the following statement? 13 + (27 + g) = (13 + 27) + 6 Please help me I am being timed!!!

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

Will mark brainliest if you answer ! the taco shop sold 198 lunches friday. this number is 3 more than 3 times the number they sold monday. let n represent the number of lunches sold monday. which equation shows an equality between two different ways of expressing the number of lunches sold on friday? a. n – 3 = 198 b. 3n – 3 = 198 c. 3n + 3 = 198 d. n + 3 = 198

Factor this polynomial completely x^2-64