Subtract 4x⁴-14x³+11 and -14x^6 - 9x^5 - 12x²

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6