Your classmate is starting a new fitness program. he is planning to ride his bicycle 45 minutes every day. he burns 6 calories per minute bicycling at 11 mph and 9.75 calories per minute bicycling at 15 mph. how long should he bicycle at each speed to burn 300 calories?

he should bicycle for _ minutes at 11 mph and _ minutes at 15 mph.

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.

One positive number is 9 more than twice another. if their product is 95, find the numbers

Write the standard form of an equation with (see picture below)