Emerson’s earns money from walking dogs and answering surveys. he earns $5 a week for each dog he walks and $0.10 for each survey he answers. last week, emerson answered 100 surveys and earned $35

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.

Simplify the expression. -2/5(10+15m-20n)

Consider the function f(x)=-5x+3 what is f(-2)