Im in Algebra and I have no idea What is

2.5k+5-1.5k=14

It's costs $2.80 to make a sandwich at the local deli shop to make a profit the deli sells it at a price that is 170% of the cost the sandwich sells for

Why is it necessary to check for extraneous solutions in radical equations?

3. Your math, literature, Spanish, history, and science homework assignments are organized in five folders. You randomly choose one folder, finish your assignment, and then choose a new folder.

Donna had 5 tubes of glitter to use to decorate 3 posters. She used the same amount of glitter on each poster. how many tubes of glitter did donna use on each poster?

Water freezes at 0 celsius and 32 fahrenheit. water boils at 100 celsius and 212 fahrenheit. write degrees celsius as a linear function of degrees fahrenheit.

Consider the equation 4x2 + 2x = (x + 2) (x - 5) x Match the Property used to create an equation with the same solution set.

4. Polynomial Division Divide. (x3 - 2x - 3) : (x + 3)

Extracting the square root. (4x+7) ^2=60

The range for a list of measurements equals the greatest measurement minus the least measurement. The two lists of measurements, X and Y, combined consist of 30 measurements with a range of 25. What is the range for the measurements in list X?

Average of 6 numbers is 4, if the average of 2 numbers is 2 what is the average of other 4