If there are 21 values in a data set in order from smallest to largest, what is the first quartile of the data set?

a. the mean of the 6th and 7th values
b. the mean of the 5th and 6th values
c. the mean of the 3rd and 4th values
d. the mean of the 4th and 5th values

The total number of photos on hannah’s camera is a linear function of how long she was in rome. she already had 44 photos on her camera when she arrived. then she took 24 photos each day for 6 days. what is the rate of change of the linear function that represents this

Can you decompose the numbers 20,740,6,000

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?