3x + 9 = 90
3x = 90 - 9 = 81
x = 81/3 = 27
x = 27
Answer:
11 is b
Step-by-step explanation:
thats all i can do sorry
The rule for the linear graph is y=mx
I think it's 36. Because 7x3=21 and 12x3=36
The 3 sides should obey the Pythagorean Theorem
29^2 = 21^2 + 18^2
29^2 does not equal 441 + 324 = 765
29^2 = 841