Which is the correct algebraic expression after combining like terms?

6cd+3c-7d-3cd+4d+1/3c

a) 3cd+2 2/3c-11d

b) 3cd+3 1/3c-3d

c) 9cd+2 2/3c-3d

d) 9cd+3 1/3c-3d

Brett is building a fence around his yard. he has worked on it for two weeks so far. he finished 2/8 the first week and 3/8 the second week. what fraction of the entire fence has he built?

Identify which type of sampling is used: random, systematic, convenience, stratified, or cluster. To determine customer opinion of their check dash in service , American Airlines randomly selects 70 flights during a certain week and surveys all

The sum of two numbers is 40 and their difference is 10

Round 2.1349 to the nearest hundredth. Explain in your own words why you round the number the way you do. Use a number line to support your explanation.

Write 42 as a product of prime factors

The rectangular bar is connected to the support bracket with a 10-mm-diameter pin. The bar width is w = 70 mm and the bar thickness is 20 mm. Each side of the bracket has the same dimensions as the bar.

A miniature horse weighs 228 fewer kilograms than a Shetland pony. Use the table to find the weight of a Shetland pony. Miniature horse wights 53kg

In a box of tickets, there are 50 blue tickets and 15 red tickets. after a certain number of red tickets are added to the box, the probability of randomly choosing a red ticket is 2/3. how many red tickets were added to the box?

The perimeter of a rectangle is 68 feet. Find the dimensions of the rectangle if the ratio of the length to the width is 9:8.

What is 0.8 to the power of 2