What is 7\10 +17\10 so i know

Pls! does anybody know a shortcut for answering these types of questions in the future?

Which of the following is true for the relation f(x)=2x^2+1

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points