20 points and brainliest if answered and explained!

triangle abc has the angle measures shown.

m∠a= (2x)°
m∠b= (3x)°
m∠c= (4x)°

which statement is true about the angles?

a) m∠a= 20°
b) m∠b= 60°
c) ∠a and ∠b are complementary
d) m∠a+m∠c= 100°

i would need to see the dot plot : )

step-by-step explanation:

hunhgunyt7 in u uuuhiuteu

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.