in the west block of higher secondary school , a wall of bricks having 0.5m wide and 1.5m is to contructed surrounding a ground 200m long.to build that wall bricks of side 20m*10m*5m are required.if cost of a bricks transportation charge and wages rs 12 , rs 1.75, rs 0.25 respectively.find the total cost of constructing the wall.

13. $25/month

14. 36 and 37

Step-by-step explanation:

Let a = monthly rate ($/month)

t = time (months)

k = installation cost

The equation for the cost of the internet service C is

C = at + k

Since C = $685. t = 24 months (2 years) and k = $85, we can solve for a:

at = C - k

or

a = (C - k)/t

= ($685 - $85)/(24 months)

= $25/month

14. Let n = the number

n + 1 = the number after n

Since the sum of two consecutive numbers is 73, we can write the equation as

n + (n + 1) = 73

which simplifies to

2n + 1 = 73

2n = 72

Solving for n, we find that

n = 36

so the other number is 36 + 1 = 37.