Yesterday there were b milligrams of bacteria in a lab experiment. today there are b to the second power milligrams of bacteria. if there are 400 milligrams today how many milligrams of bacteria were there yesterday?

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3