Visitors to a carnival pay an admission fee and must buy a ticket for each ride they go on. Last year the total cost for a visitor to go on n rides was modeled by the expression 4.00 + 1.50n. This year, the carnival doubled the cost of a ride ticket but kept the admission fee the same.

Which expression models the total cost for a visitor to go on n rides at the carnival this year?

A. 4.00 + 3.00n

B. 8.00 + 1.50n

C. 4.00 + 0.75n

D. 2.00 + 1.50n

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.