Can someone help me with this- (WILL GIVE BRAINLIEST)

Can Someone Help Me With This WILL GIVE BRAINLIEST class=

Answer :

Answer:

2) No function

3) Function: y=30x

Domain: x≥0

Range: y≥0

4) Function: y=160

Domain: x≥20

Range: y=160

Step-by-step explanation: