What is pi divided by 5 minus pi divided by 3?

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?

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor