Please help ASAP! How long would it take to earn $162 of interest at a 9% interest rate if you started with $300? I=Prt

2x+3y=12 x-y=6 solve the following system equations

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

The standard distance between studs in a house is 1.5 feet. if you have a set of blueprints for a house that mark every 1.5 feet with 2 in., by how many inches will a 13-foot wall be represented?