If the total age of James John and Jude is 80 what is there total age 3 years ago

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?

New york is the 27th largest state in the united states.what percent of the 50 states in the us are larger than new york