I will brainlist who can answer this 3 Questions!

Answer:
20.) A
y = 10x + 15
21.) C
Php 75.00
22.) B
Php 195.00
Step-by-step explanation:
20.)
We see an increase of 10y per x, which is where we get "10x"
This means that at x = 1, y = 15, which is where we get "+ 15"
21.)
Plug in 6 for x
y = 10(6) + 15
y = 60 + 15
y = 75
Php 75.00
22.)
Plug in 18 for x
y = 10(18) + 15
y = 180 + 15
y = 195
Php 195