I WILL GIVE BRAINLIEST Which statement illustrates why cosine is an even function? 57 O cos(4) --cos(5 O cos( 4 ) = -cos(45) cos(-) = cos(8) O cos(-77) = cos ( 5T

Jackson earns $25 per hour as a tutor at the college library. he set a weekly spending budget of $130 each week and puts the remaining money in his savings account. how many hours must he work this week to have at least an extra $50 to put in his savings account