R={(-3, -2), (-3, 0), (-1, 2), (1, 2)} Select all numbers that are in the domain

What's the difference between: x≥0 and nonnegative integer. ?

The table above shows approximate conversions from gallons to liters. what is the value of x?

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.