Yall i need this to be corret please explain giving brainliest

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

This is so hard and it’s for a test

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36