Pls answer me this all question correctly pls I beg you pls friends pls pls pls pls​

a) 21 b) 0.02 (4 a)

Step-by-step explanation:

a] 12×5+2 =62 - 6×8+7=55 (making all the improper fractions into mix)

therefore 62-55= 7

4)a 7×4 and the denominator 9 x 15 (just multiply both the numerators and both the denominator. the rest ill write it down.

i hope you understood, thankyou ❤️

step-by-step explanation:

sry but any answer choices

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.