Answer:
1.50S + 2.50P > 20
Step-by-step explanation:
Since the function f(x) is written in the form y = mx + b, where m is the slope and b is the y-intercept, it currently has a y-intercept of b = 6. If this function is shifted downwards (vertically) by 12 units, its new y-intercept will be:
(3a-5) - (a+3)
Subtract a from 3a while subtracting 3 from 5
Final Answer: 2a - 8
Each key is 1/5 the way for the door to be open