Answer:

Step-by-step explanation:
x^-y=1/(x^y) so 3t^-4=3/(t^4)
Y=8.25x+10
10 is the allowance plus the 8.25 times x which is the hours
The equation in required form is: -x+2y = 12
Step-by-step explanation:
Given equation is:

In order to convert the equation in 
Multiplying both sides by 2

subtracting x from both sides

Hence,
The equation in required form is: -x+2y = 12
Keywords: Linear equation, slope
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1/2 = 3/6
Each children got 1/6
3/6 - 1/6x = 0
3/6 = 1/6x
X = 3, she has 3 children