Elena began to solve this equation: 12+ + 6(4x + 3) = 2(6x + 4) - 2 3 12x + 6(4x + 3) = 3(2(6x + 4) - 2) 12x + 6(4x + 3) = 661+ 4) - 6 12r + 24 + 18 = 368 + 24 - 6 When she got to the last line she stopped and said the equation is true for all values of x. How could Elena tell?

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.

its 8

step-by-step explanation:

step-by-step explanation: