Required expression is x/9 - 7
Answer:
C. since 8, 15, 17 are pythagorean triples
I got 6 for my answer, but I'm not 100% sure if I'm right.
6(2x-11)+15=21
12x-66+15=21
12x-51=21
+51 +51
12x=72
----- ----
12 12
x=6
Answer:
38 Tables
Step-by-step explanation:
182 + 274 = 456
456 / 12 = 38