Need some more info, what are the dimensions of the bricks?
Answer:
3
Step-by-step explanation:
first two terms cancel eachother out!
<span>sin(angle)=<span><span>opposite leg/</span><span>hypotenuse</span></span></span>
<span><span><span>
</span></span></span>
<span><span><span> sin(20) = 10/ hypotenuse</span></span></span>
<span><span><span>hypotenuse = 10/sin(20) = 29.238 ( round off as necessary)</span></span></span>
<span><span><span>
</span></span></span>
For each dollar take 40 cents of and u will get the answer