Combine the like terms to create an equivalent expression. \large{7k-k+19}7k−k+19

How do you solve a question like this?

Scott’s bank account showed a balance of $750 on sunday. during the next five days, he made one deposit of $140 and numerous withdrawals of $180 each. let x represent the number of withdrawals that scott made. write an inequality that can be used to find the maximum number of withdrawals that scott could have made and maintain a balance of at least $100. do not use a dollar sign ($) in your response.

What is the surface area of a cube with the volume of 729 ft?