A researcher is dividing a sample with a mass of 9.2 * 10 ^ - 3 grams into smaller samples with a mass of 2.3 * 10 ^ - 4 grams . How many smaller samples will she be able to make?

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?