Malcolm is taking a speed-reading course. He records the number of words per minute that he can read correctly x weeks after he starts taking the course. The following set of ordered pairs represents the recorded details, where the x-coordinate is the number of weeks and the y-coordinate is the number of words per minute. What describes the set of ordered pairs?

i believe the answer is 68cm

step-by-step explanation:

i just took 34 x 2 because the space between v and y is the same as y to k.

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.