-1/2*-8=4=) Enjoy! (Becuase a negative* a negative equals a positive and 1/2 times a number is half that number.) So it would be C
137500
40%+15%=55%
55%/100=0.55
250000*0.55=137500
250000-137500=112500
80
Using the rule of 3, 60x100% =6000(obviously) and 6000/75 = 80
Answer: The inverse of f(x)=3x+1 is f(x)−1=13x−13
Step-by-step explanation: