Am i correct so far Can Someone answer

Which graph represents 2x-5y< 15

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

You are saving to buy a bicycle; so far you save 55.00. the bicycle costs 199.00. you earn 9.00 per hour at your job. which inequality represents the possible number of h hours you need to work to buy the bicycle?