Estimate 18.22 + 8.531 by first rounding each number to the nearest tenth

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Anyone know? will mark brainliest if correct

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28