Please help me with these math problems

Will give brainliest immeadeately true or false: the origin woud be included in the solution set for the inequality: y< 2x-5

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.