Answer:66
Step-by-step explanation:
an=21+5n
ninth term is a9
a9=21+5x9
a9=21+45
a9=66
Answer:
-10,000
To solve for x, first simplify 45x^3 to get 91,125, then subtract 91,125 from both sides of the equation. 81,125 - 91,125 is -10,000, so x = -10,000.
The answer would be C and F
36/10 or 18/5 or 3 3/5