Remove the parentheses from the following expression, and combine like terms.

2x (y-z) + x (y+z)

During a wind storm, two guy wires supporting a tree are under tension. One guy wire is inclined at an angle of 35 degrees and under 500 N of tension. The other other wire is inclined at 40 degrees to the horizontal and is under 400 N of tension.

What is the product number of (-0.5) (-1.2) (-5.22)

What is the common difference in the sequence 9, 4, - 1, - 6? A. 5 B. - 5 C. 9 D. - 11 (Am I dividing or subtracting?)

Simplified ratio for 40 : 2,250

If 455 people visit the store, how many dvds were given away

1. Is the sequence 5, 9, 15, ... an arithmetic sequence? Explain

Credit card a offers an APR of 25.68%, compounded monthly, while credit card B offers and APR of 25.32%, compounded daily. All else being equal, which card offers the better deal for the customer?

Seven times a number plus the sum of three and twice a number is 30.

All pyramids are Platonic solids. True or false?

Which decim is greater than 2.234