Simplify the expression.

1) - n + 9n + 3 - 8 8n

2) 6a - b - 2a + 4b

3) 18 - 3c + 9 + 4d

4) 3 - 4x + 5y + 6x - 12y

5) - 21x - 2x (second power) + 16x (second power)

What is the perimeter of the rectangle? Write your answer in scientific notation. The area is 2.76 x 10 pw12 the width is 4.6 x 10 pw5 pw is the power

What mathematical symbol does an inequality not contain

Dave wants to buy a new collar for each of his 3 dogs. The collars come in a choice of 6 different colors. 1. How many selections of collars for the 3 dogs are possible if repetitions of colors are allowed? 2.

Write 6 over 10 in terminating decimal

Algebra: mrs. Davis spent $120 on lunch for a business meeting. Sandwiches, x, cost $4 and drinks, y, cost $1.50.

632 16/25+32 3/10 what does that =

Which is bigger g or mg

a football is selling for 35% off the original price the sale price was $39 what is the original price of the football?

In nebraska in l-80, the speed limit is 75 mph. how long woukd it take you to travel 525 miles in nebraska on l-80 if you went the speed limit the whole time

Find the value of y when x=3: y = 2x + 1