How many times can you subtract 10 from 100?

(hint hint, trick question)

Our goal is to collect email addresses from 60% of customers who purchase a product." so that means if i talk to 95 customers, i need to persuade to provide an email address?

The amount of energy it takes to lift a box might be a function of which of the following

Evaluate cos2θ for cosθ = square root of 3/2