During an average life span, the human heart will beat about 2,800,000,000 times. write this number in scientific notation..

What graph correctly matches the equation y equals two negative x

Which is the graph of the following inequality?

Kim took out a $55,000 loan for college she is borrowing money from 2 banks bank a charges an interest rate of 8% and b charges an interest rate of 11% after one year kim owes 5000 in interest how much money did she borrow from bank a.