Tell whether the set is closed under the operation indicated.

If not closed, provide a counterexample.

1.) integers under addition 2.) integers under division

3.) whole numbers under subtraction 4.) Irrational numbers under addition

How do I solve (7-6i) (-8+3i) ?

Find a polynomial function of degree 3 with - 1, 2, 4 as zeros

Should I multiply or divide: Anita grew a garden with 3/4 of the area for vegetables. In the vegetables section, 1/6 of the area is carrots. What fraction of the total garden is carrots?

Easy math, but not sure what I did wrong. Alex took 31 exams during 5 years studying at the MaPhAs University. Each year, he took more exams than the previous year. During his 5th year, he took three times as many exams as in the 1st year.

Mason sold pumpkin seeds at the farmers market on Saturday. The line plot shows the different weights of pumpkin seeds sold on Saturday?

On a test Matilda answered 12 out of the first 15 correctly. If this rate continues how many of the next 25 problems will she answer correctly?

Which expression shows the value of a $10,000 investment that has lost 1.2% if it's value for five years In a row

The bear population in RI has been increasing by 8% each year. In the year 2010 there were only 20 bears spotted in RI. Based on this info, a. create a function a (t) that represents the bear pop, t years since 2010 b. determine bear pop in 2020 c.

A ladder leaning against a house makes an angle of 30° with the ground. the foot of the ladder is 7 feet from the foot of the house. how long is the ladder?

Would you rather have 40 hours a week of video game time or 40% of your week?