5
Convert 1101 two to base 5​

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! )

Given abc find the values of x and y. in your final answer, include all of your calculations.

Why is causation so much more difficult to prove than correlation?