What is the 12th term in the sequence of a(n)=-5+6(n-1)

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )

The longer leg of a 30-60-90 trangle is 18

Which method of gathering data will be most effective in learning how diet and fitness choices affect long-term healt