What is the first step in simplifying the expression 2(x+3)+5 ? 2x+2(3)+5 2x+3+5 2+x+3+5 2(5)+x+3

2x+2(3)+5

Step-by-step explanation:

The first step is eliminating the brackets by multiplying everything inside the brackets by 2 which will then resulting in multiplying by 2 into x, thus having 2x+2(3)+5.

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 :