<span>
<u><em>The correct answer is: </em></u>C 1.556.
<u><em>Explanation:</em></u>This can be found by locating the csc button on your calculator. Typically it is located as the second option below the sin button as it is the inverse function.
If you cannot locate the csc button on your calculator, you can also use </span>

<span> as csc is its inverse.
Also, it is helpful to note that some calculators have both a degrees and a radians mode for trigonometric functions. You will need to make sure that you are in degrees in order to use a calculator to solve this. </span>
Easy
first term is n=1
so 10th term is n=10
5(10)+100=50+100=150
150 is 10th term
I THINK it is 20% i used a calculator to help me find m answer
Ok, so the key says 1cm=10mm. So you do 25x10=250cm, then do 250(the fish)-25(the guinea pig)= 225cm