Which situation could be solved using this expression?
4k + 2
a.
jason read four more than twice the number of books that marty read. how many books did marty read?
b.
jason read four times as many books as marty. marty read two books. how many books did they read together?
c.
jason read two more than four times the number of books that marty read. how many books did jason read?
d.
jason read half as many books as marty read. how many books did jason and marty both read?

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.

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours

b

step-by-step explanation:

this is because the profit is decreasing and turning into debt