Please help! I am in 7th grade and this isn't 7th grade math

In a linear function, there will be no curves or overlaps. Look for regular equations in slope-intercept form, standard form, or point slope form. In an exponential function, there will be curves and no overlaps. Any overlapping would mean it is neither exponential or linear. Look for exponents or curves in your graph. Also since you are given tables for some of these, the ones with any repeating x values are neither exponential or linear. Hope this helps!

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.