If 20 -x = 15, what is the value of 3x

This week, conrad will work 1 3/4 times longer than last week. giovanni will work 1 1/3 times longer than last week. sally will work 2/3 the number of hours she worked last week. match each employee's name to the number of hours he or she will work this week

Pls will give brainliest and all p.s u can zoom in if u cant see plss

Which of the following is the graph of y= square root -x-3