Which expression is equivalent to Negative 6 (negative two-thirds + 2 x)?
Negative 4 minus 12 x
Negative 4 + 2 x
4 minus 12 x
4 + 12 x

4 minus 12 x

Step-by-step explanation:

4 - 12x

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.

1.30

step-by-step explanation: