Answer:
216-343
Step-by-step explanation:
Since a₁ = 36 and d = 1/3 the formula for this geometric sequence is aₙ = 36(1/3)ⁿ⁻¹ which means a₆ = 36 * 1/3⁵ = 0.148.
x is 44 because
3x+4+x=180
4x=180-4
4x=176
x=44