NEED HELP
DUE VERY SOON
THANKS TO WHOEVER HELPS <3

*BTW this is pre-algebra*

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice

For the sequence [tex]a_{n} = 2n/(n+1)[/tex], what is the value of [tex]a_{10}[/tex]