66. in 1 month, a plumbing contractor uses 1,200
feet of 1/2-inch copper pipe at $8 per 20-foot
length, 450 feet of 3/4-inch copper pipe at
$11 per 20-foot length, 310 feet of 1-inch
copper pipe at $9 per 10-foot length, 510 feet
of 4-inch plastic pipe at $4 per 10-foot length,
and 264 feet of 112-inch plastic pipe at $3 per
10-foot length. what is the total amount he
paid for pipe for that month?

answer is d-29

step-by-step explanation:

since you didn't include the picture, i can give you the description so you know how to pick the correct answer. the third quartile of a data is always shown in a box plot. in the middle of your graph should be a box. the third quartile is the value that goes with the far right edge of the box.

sorry i need the points

step-by-step explanation:

biuuyb i\

uygybg bsyvyuenrs

ufir7gyuuf6

y6fy

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for