The table shows the prices of electronics at a store. Find the dot plot with a scaled number line that represents the prices in the table.

D

Step-by-step explanation:

To find the correct dot plot, we need to group the numbers as the plot requires. The plot group the numbers every 10 value, or the tenth digit. If we group the value for different tenth digit it will be:

10-19.99= 10.43, 19.45                   = 2 values

20-29.99= 22.11, 27.00, 22.16      = 3 values                  

30-39.99= 36.05, 34.82                =  2 values

40-49.99= 48.92, 43.28, 40.66    =  3 values          

50-59.99= 56.39                           =   1 values  

60-69.99= 69.98                           =   1 values  

The correct box plot is the most bottom one, the fourth option

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation: