11. What is the mass of 30,000 molecules?express your answer in scientific notation the mass of one molecule of oxygen equals 5.3×10 to the -23 Gram. Pls help

Do the math. she originally had 50 dollars on her gift card and she had 12 dollars left on her gift card after she finished her shopping spree. if you subtract 50 minus 12 you get thirty eight dollars as your answer. so therefore, ciara spent 38 dollars total o

Answer is a not really sure tho

Arectangle is a quadrilateral and a parallelogram.here is all that apply to a rectangle!