SIMPLIFY: A3 xA9 over A4 PLEASE HELP

A⁸

Step-by-step explanation:

A³*A⁹/A⁴

Product law:Says that if the base of the number being multiplied is the same, then we can add the exponents

Therefore

A to the power of 3+9/A⁴

A¹²/A⁴

Quotient law:Says that when we divide two numbers with the same base,we can subtract the exponents

Therefore

A to the power of 12-4

A⁸

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.

the thermometer is precise but not accurate

step-by-step explanation: