A cleaning company charges $200 for each office it cleans. The fixed monthly cost of $450 for the company includes telephone service and the depreciation on cleaning equipment and a van. The variable cost is $50 per office and includes labor, gasoline, and cleaning supplies (a) Write a linear cost function representing the cost C(x) (in $) to clean x offices per month.

(b) Wnte a linear revenue function representing the revenue R(x) (in $) for cleaning x offices per month.

(c) Determine the number of offices to be cleaned per month for the company to break even.

(d) If 21 offices are cleaned, will the company make money or lose money?

question is incomplete.

135 is your answer

step-by-step explanation:

try 180 times three then divide that number by 4 (sides) to get your answer. im glad to : )

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb