A trick for solving this on a calculator is entering 12880*.68 twenty times
Or f(t)=a(l-r)^t
t=time
a=initial amount
r=rate of decrease
f(20)=12880(l-.32)^20
It is about 5.75564656018
-4x+7>= 27
-4x >= 20
x <= -5
answer is B
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3x-10<-25
3x < -15
x<-5
answer is A
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5(x-2)>-15
5x - 10 >-15
5x >-5
x>-1
answer is D
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x/1 - 9 < -10
x-9<-10
x<-1
answer is C
Where’s the question bro?
Answer:
45.8
Step-by-step explanation:
Say the number Malachy was thinking of is <em>x</em>.
Doubling it gives 2x, which we see also equals 91.6. Set these equal to each other:
2x = 91.6
To solve, we divide both sides by 2 and get x = 45.8, which is our answer.
So whe have

that is paid to the boss.
The boss won 2,176.10 this month.

So our equation would end as...

We solve what can be solved...
0.47=\frac{2,176}{x}
Then we leave our unknown value alone...
0.47x=2,176
x=\frac{2,176}{0.47}
Last we solve...
x= 4,629.79
x≈4,630
So the answer is A.