You have a coupon for your favorite clothing store for $20 off any purchase of more than $75. The store is also running a 15%-off sale on its entire inventory. Let x be the original price, f x( ) be the price with the $20 coupon applied, and g x( ) be the price with the 15% discount applied. (a) Write an expression for f x( ) . (3 points)

(b) Write an expression for g x( ) . (3 points)

(c) Write the expression (f g x )( ) and explain what it represents? (3 points)

(d) Write the expression (g f x )( ) and explain what it represents? (3 points)

(e) If the store allows you to apply both the 15% discount and the $20-off coupon, does it matter which you apply first? How do you know? (3 points)

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1

cool? what is the actuall ?

step-by-step explanation: