Which equations illustrate the commutative property of addition?

Choose exactly two answers that are correct.

A.

-5 + [6 + (-4 + 3.1) ] = - 5 + [ (-4 + 3.1) + 6]

C.

-7.4 + (13 + 2.1) = (-7.4 + 13) + 21

D.

-9 + 11 = 11 + (-9)

Find the value of x in the following proportion: 6 : 9 = x : 72

I am a number less than 3000. When you divide me by 32, my remainder is 30. When you divide me by 58, my remainder 44. What number am I?

A pet shop manager wants the same number of birds in each cage. He wants to use as few as cages as possible, but can only have one type of bird in each cage. If he has 42 parakeets and 18 canaries, how many birds will he put in each cage?

If it takes 5 hours to do 2/3 of a job, how long will it take to complete a job?

What type of graph is best to compare two sets of data over time A bar graph B line graph C double bar graph D double line graph

If the solution of a polynomial fucntion is x=-5 then the linear factor is (x-5)

Alberto is stacking firewood. He puts 20 logs on the bottom row. Then he stacks each row so that there is 1 fewer log than the row below. Which of the following is formed by the number of logs in 10 rows? A. an arithmetic series B.

The angles of a triangle are in the ratio 4:5:6. Find the smallest angle

Patrick is working for an hourly wage of $15. If he worked for 28 hours last week, what is his gross pay? A. $375 B. $420 C. $450

Solve 5 (x - 8) = 50.