Answer:

Step-by-step explanation:

f(-x) is a reflection of f(x) in the y-axis

Here is the answer!!!! For the part that got cut is this (-27x+40)

£770.64

**Step-by-step explanation:**

100%=£754.79

10%=£75.479

1%=£7.5479

0.1%=£0.75479

1%+1%=2% (£7.5479+£7.5479=£15.0958)

2%+0.1%=2.1% (£15.0958+£0.75479=£15.85059)

2DP=£15.85

100%+2.1%=102.1% (£754.79+£15.85=£770.64)

**Answer:**

20/3 pounds of coffee that costs $12 per pound and 40/3 pounds of coffee that costs $9 per pound are required

**Step-by-step explanation:**

Let x be the amount of coffee that costs $12 per pound

Cost of x amount of this type coffee = 12x

We are supposed to find How much of each should be used to produce 20 pounds of the new blend that costs $10 per pound

So, Amount of coffee required that costs $9 per pound = 20-x

Cost of (20-x) amount of this type of coffee = 9(20-x)

So,

Amount of coffee that costs $12 per pound required is

Amount of coffee that costs $9 per pound required = 20-x=

**Hence 20/3 pounds of coffee that costs $12 per pound and 40/3 pounds of coffee that costs $9 per pound are required**