Help please! I don’t understand it

Answer:
Slope = 6.25
Step-by-step explanation:
The equation the given word problem, P = 6.25x + 75, where:
P = Samantha's total pay per day
x = number of computers that Samantha sells
75 = base pay or inital value.
The 6.25 is the rate of change or the slope of the equation, which represents the change in Samantha's total pay for every x number of computers sold. Specifically, Samantha's commission increases her total pay by 6.25 for every computer sold.