Find the Mean, median and mode of the following problem Addy’s monthly water bills for last year are $27, $31, $30, $26, $25, $27, $37, $33, $32, $28, $26, $26. Express the formula for the mean using sigma notation and calculate the mean water bill for the year.

mean: 29   median: 27.5   mode: 26

Step-by-step explanation:

Mean: you add all the numbers together and divide by that number (12 different #'s , you divide by 12)

Median: What is the middle number in order from least to greatest. if you have an even # add the two numbers together and divide by 2.

Mode: The most seen number (ex: there were three 26's)

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)

the second option

step-by-step explanation: