Answer:
the ordered list is x, x+2, x+4, x+6, x+8, x+10
formula is Tn = 2n - 2
x = 8°
Step-by-step explanation:
(7 x + 1) + (3 x +9) = 90
10 x + 10 = 90
10 x = 80
Answer:16.454mm