How much tax, in dollars, did Andrea pay for each song? There are 85 songs, each one costs 1.09 plus tax, and the total is $96.90

Y=4x^2+x-1 solve using quadratic formula

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

Aculture started with 2,000 bacteria. after 8 hours, it grew to 2,400 bacteria. predict how many bacteria will be present after 19 hours . round your answer to the nearest whole number. p=ae^kt