(4x-5)+(2x+1) CAn anyone help with this

Which of the following is the true for f(x) = 5cos

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f