Please answer with clear instructions so that i can apply this to other questions

Andrea went to the store to buy sweater that was on sale for 40% off the original price it was then put on clearance an additional 25% off the sale price she also use a coupon that saved her an additional five dollars and j did not spend more than $7.60 for the sweater what are the possible values for the original price of the sweater?

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Question 101 points)which equation in slope-intercept form represents the line that passes through (5, 1) and(-4,7)