Adding and Subtracting Rational Expressions: In Exercises 1-3, find the sum or difference.
1. 12/5x + 3/5x 2. x/9x^2 - 3/9x^2
3. 7/x-2 - 3x/x-2

the answer is d. (1.2, -4.7) on edgn

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you can't solve x because it is 2 linear equation and you only have one equation

the correct option is b

step-by-step explanation:

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.