exam Maths Puzzle Numerical Ability

Hello can you help me with this.
Calculate the value of the discriminant of x^2+4x+4=0
By examining the sign of the discriminant in part a, how many x-intercepts would the graph of y=x^2+4x+4 have? Why?
Thanks

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exam Other Question
Can someone help me on this problem?

I need to divide and round the quotient to the nearest thousandth:

3.041 divided by 0.37

Thanks,
Sher Find three consecutive odd intergers such that 4 times the sum of the last two is 2 greater than ten times the first.