20 points !
evaluate the expression. show your work.
6 x 7 - 3^2 x 9 + 4^3

25

Step-by-step explanation:

Following the order of operations as stated in PEMDAS

Given

6 × 7 - 3² × 9 + 4³ ← evaluate exponents

= 6 × 7 - 9 × 9 + 64 ← evaluate multiplication

= 42 - 81 + 64 ← evaluate addition

= 106 - 81

= 25

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.

step-by-step explanation: