Maria borrowed $3,000 at a simple interest rate of 4% per year. How much did she have to repay after 4 years? $3480
$480
$7800
$4800

the red lines denote the population of the bacteria after 35 hours. that would be 2,409.24. the y-intercept is the blue line which is 800 because that is the starting point. the equation used to make the graph is 800(1.032)^h, where h is the number of hours.

step-by-step explanation:

sounds & other waves originate from any vibrating object