My sister went on her first date last night and she is 22 any advice

be yourself

Step-by-step explanation:

that's the only thing that i can say

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value