Jane = x years
Tom = x+8
*5 Years Ago
Jane= x-5
Tom= (x+8)-5=>x+3---------------------------
x+3=3(x-5)<span>x+3=3x-15
3x-x=18
2x=18
x=9
Jane = 9 years
Tome = 9+8 = 17 years</span>
The answer is y^-1 :) when you have two exponents over a y in a fraction or divison, you always subtract the top from the bottom. hope this helps!
<span>
<span>
</span><span><span>
<span> Selling Price </span>
<span> Cost </span> <span> Profit </span>
<span> Mark up </span>
</span>
<span>
<span>
75.99 </span>
<span> 61.00 </span>
<span> 14.99 </span>
<span> 0.25
</span></span><span><span> 29.95 </span>
<span> 23.75 </span>
<span> 6.20 </span>
<span> 0.26</span></span><span><span>
19.25 </span>
<span> 15.00 </span>
<span> 4.25 </span>
<span> 0.28</span></span><span><span>
1.50 </span><span> 1.19 </span>
<span> 0.31 </span>
<span> 0.26</span></span><span><span>
54.99 </span>
<span> 44.55 </span>
<span> 10.44 </span>
<span> 0.23</span></span><span><span>
12.95 </span>
<span> 10.80 </span>
<span> 2.15 </span>
<span> 0.20
Profit = Selling price - Cost
Mark up = Profit / cost </span></span></span></span>
