If t_n=3.5n+4.5, find t_1, t_10, and t_n+1-t_. is 85 a term of this sequence?

Abag of popcorn contains 483 calories and servers 3.5 people. how many calories are in each serving.

The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?