Marla has $95.50 in her savings account. she deposits $5 every week. her mother also deposits $20 into the account every time marla washes the car. her savings account balance can be shown with the following expression: 20c + 5w + 95.50 part a: identify a coefficient, a variable, and a constant in this expression. (3 points) part b: if marla saves for 20 weeks and washes the car 5 times, how much will she have in her account? show your work to receive full credit. (4 points) part c: if marla’s mom deposited $10 after each car wash, would the coefficient, variable, or constant in the expression change? why? (3 points)

step-by-step explanation:

the true ones are a b and d

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.