Simplify the expression 12−17/−5−(−2).

12-17/-5-(-2) so divison first,it will become 12+3.4-(-2) =two minuses will become a "+"

So,12+3.4+2=17,4

ANSWER: 17.4

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.

18.75 gallons

step-by-step explanation: