Answer:
-7
Step-by-step explanation:
bla bla bla 20 characters
10/45 for black
12/45 for green
3/45 for orange (can be simplified to: 1/15)
20/45 for blue
Answer:
21 t-shirts, 13 sweatshirts is the answer
Tan t /(sec t -cos t)= sin t/(cos t *(1/cos t -cos t))
=sin t/(cos t*(1-cos ²t)/cos t))
=sin t/sin² t=1/sin t [or=cosec t.]
