Simplify complex numbers:add n subtract complex numbers

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

On Sunday afternoon, the ratio of adults to children at the park was 1 to 3. There were 48 children at the park. How many adults were at the park

The area of a rectangle is a 2.84 square meters if the length is 7.6 then what is the width

4. A ramp is being constructed with wood and then filled with concrete. How many cubic feet of concrete will be needed to complete the ramp?

At the hairdresser jenny had 27 cm offer hair how many decimeters of hair did Jenna

Expression for 13 less than P

23 1/24 is what as a mixed number

Which set of expressions are not equivalent? 4c - 2c - 3 and 2c - 3 (9c + 12) - c - 3 and 8c + 9 5c - 2c + 8 - 4 and 3c + 4 0.5 + (10c + 8) and 5c - 4

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Whats 99 as a product of prime factors

Farmer Ed has7500 meters of fencing, and wants to enclose a rectangular plot that borders on a river. If Farmer Ed does not fence the side along the river, what is the largest area that can be enclosEd?