What is 62786368834736748748387746377837736 4 rounded to the nearest fifteenth trillionth thousandth

Travis and paula went to lunch.travis ordered a sandwich for $7.50 and paula ordered a burger for $5.25.after lunch,they left a 15% tip for the waiter.how many money did they spend altogether?

What is the approximate mark up percentage rate before m equals $1740 marked up from p equals $19,422

Aski resort is charging $37.50 to rent a snowmobile for 5 hours. at this rate what will be the cost for a family of 5 to rent snowmobiles for 3 hours on the first day of their vacation and 4 hours for on the last day of their vacation