829 is rounded to 830 because the 9 is greater than 4 so its going to be rounded up.
        
             
        
        
        
Answer:
The rock splashes down when h(t) = 0. Set h(t) = 0 and solve for t using quadratic formula.
0 = − 4.9t^2 + 178t + 325
t = 38.07, -1.74
(Throw away the negative answer, since time can't be negative.)
t = 38.07 sec
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Since 1 ton is 2,000 lbs, each Crib Jack can life 30,000 lbs. It's going to take 2 Crib Jacks, because the extra 5,000 lbs in belongings were removed, leaving the house at a weight of 60,000 lbs. 
        
                    
             
        
        
        
96 pints are bigger
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Answer: 1
Step-by-step explanation:
3(x-1)
3 times x = 3x
3 times -1 = -3
3x-3
1