(20*6)+(12*6)+(18*10)=312 500-312=188 colored pencil's left.
Sorry I can't solve it.
Firstly, the equation is wrong. It is supposed to be <span>81 ≠ </span><span>30.25
Second of all, this is the best I got </span>81= <span><span>−<span>76 <span>(<span>cos<span>(r) </span></span></span></span></span>+ <span>106.25</span></span>
It take 2.75 years
Step by step explanation:
18600$ / 1000$x6.75%=2.75
It should be D, I did the math :)
