Simplify complex numbers:add n subtract complex numbers

(6-9i) + (4+2i)

Lines m and p are parallel. If the slope of line m is, what is the slope of line p?

I need to know what 478 dividend by 27

Without doing the math, determine which is greater, 40 times 1/4 or 40 divided by 1/4. Explain your reasoning.

From sea level, a submarine descends 92.5 meters every minute. In 15 minutes, how many meters will the submarine be from its starting position?

This is suppose to be a mathematical function I need to enter into excel. "Enter a formula in cell B10 to return a value of 35000 if the Net Profit after tax (Cell B9) is Greater than or equal to 470000 or 1000 if it is not.

Another way to write 9 x 200

A music practice room is used 12 hours a day. If each practice session is 3/4 hour long, how many sessions are there in a day?

Rigo and Ian went shopping for soccer cleats and practice uniforms. Rigo spent $451, before taxes, and purchased three uniforms and one pair oof cleats. Ian spent $757, before taxes, and purchased five uniforms and two pairs of cleats.

Alex spent 85% of his money on a surfboard. the surfboard costs $340. How much money did Alex have left after he bought the surfboard?

The circle below: 105 m A) 349.8 m2 B) 346.4 m2 C) 352.1 m2 D) 3442 m2 E) 354.8 m2