Answer:
x=-7
Step-by-step explanation:
well the answer of this equation of the fraction would be 8100/10 because i did the quick maths
The selling price is 2.5 times the cost. If the cost goes up by 0.25, the selling price needs to go up by 2.5*0.25 = 0.63 in order to maintain the gross margin.
Well we know that 5/10 is equal 2 1/2 so 1/2 is bigger than 3/10. becasue if u multiply the fraction by 5 u will get 5/10
