PLEASE HELP M If 0 < f ≤ 90 and cos(22f − 1) = sin(7f + 4), what is the value of f?

f = 3
f = 4
f = 5
f = 6

Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2

Binh says the point of intersections is (0,-3) which statements identify the errors binh made , check all that apply

There are 10 chicks on ginger's farm .she has 2 chicks in one outdoor pen and 5 chicks in another. the rest of the chicks are in the barn.what is the fraction of total chicks in outdoor pens?