PLEASE HELP I CANT GET PAST THESE TOO AAA

Perry has a garden. 1/2 of his garden is planted with tomatoes. 1/3 of his garden is planted with peppers. the remaining part of his garden is planted with flowers. what fraction of perry’s garden is planted with flowers?

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)