please help

Most breeding birds in the northeast US migrate elsewhere during the winter. The number of bird species on an Ohio preserve oscillates between a high of 30 in June, and a low of 10 in December. Find a formula for the number of bird species B as a function of t months since January. i) amplitude ii) period iii) Average value iv) Horizontal shift V) B (t) = . sin( c+ )+ Round your answers to two decimal places.The desert temperature H oscillates daily between a low 30" F at 4 am and a high 1000 F at 4 pm. If we measure time t in hours from midnight, then H is a periodic function of t. Find the information below for H(t). i) amplitude ii) period iii) Average value iv) Horizontal shift V) H (t) = . sin( ) + Round your answers to two decimal places