Does anybody know what this is?

6.9 + (-5) + 4.1=

I tried working it out several times but every time I do I ... I get a different answer!

Write the corresponding fraction for each of the underlined digits. a ...1277 b ...37 c ...243 d ...1156

Answer the following math question: which place value changed in 6652+600+1000=

Determine the period and frequency of the function f (x) = cos (4x)

22/25 is what percentage of that number

8x+6y=-14 get x and y by itself

Wath is 346 rounded to the nearest hundred

Twana thomas is paid $10.50 an hour for a regular 40-hour week. She earns time and a half if she works overtime. This week Thomas worked her regular 40 hours plus 8 1/2 hours of overtime. What is her total pay? A. $456.00 B. $420.00 C. $553.88 D.

in 10 words or fewer, describe what happens to the symbol when you multiply or divide each side of an inequality by a negative number

The ratio of boys to girls in Janice's classroom is 3:5, and there are a total of 32 students in the class. Using complete sentences, explain how you could draw a tape diagram to represent this situation.

Describe the difference between sociology and psychology