When graphing a linear inequality in two variables, a test point is used to assist in graphing the correct result. Which of the following is a true statement about the test point? A.
The test point should be substituted into any of the forms of the inequality you have created.
B.
The test point should always be the origin.
C.
The test point must be a point in the first quadrant.
D.
The test point should not be on the boundary line of the inequality.

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.

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