Hi please answer the 3 easy questions in the attached document.

Plzzz i beg u so much asap ! what is the slope of this line? enter your answer in the box.

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.