Gavin wrote the equation p=3(s+100)/4 to represent p, the profit he makes from s sales in his lawn-mowing business. which equation is solved for s?

Given the equation p = 3(s + 100)/4 

Where,
p = profit made
s = sales 

Solving for s from the given equation

p = 3(s + 100)/4

Multiply both sides by 4
4p = 3(s + 100)
4p = 3s + 300

Subtract 300 from both sides of the equation
4p – 300 = 3s
Same as, 3s = 4p – 300

s = (4p – 300)/3 
OR, s = 4p/3 – 100 
If any of these two is in the options, it’s the right answer.