A biologist uses an electron microscope to determine the dia…

A biologist uses an electron microscope to determine the diameter of one Aurantimicrobium minutum, which is one of the smallest known bacteria that lives in river systems. The biologist determines that the width is 1.5 x 10-4 millimeters. What is this diameter, written using standard form?

The pie chart below represents Bubba’s monthly expenses. He…

The pie chart below represents Bubba’s monthly expenses. He spends $2,500 dollars for rent, $630 for gas, $890 on his car payment, $1050 for food, and $170 for miscellaneous expenses. Use the pie chart to answer the following question. What percent of Bubba’s monthly expenses is spent on gas? (round to nearest tenth if needed)    0425test1Piechart.png    

Mia spent 4 hours studying for an exam, and she received an…

Mia spent 4 hours studying for an exam, and she received an A on the exam. Normally, she would have spent that time watching TV instead of studying. Mia figures she could have made a B after studying only 2.00 hours, but she really wanted an A. What is Mia’s marginal cost in terms of TV viewing to move from a B to an A on the exam?