exam Maths Puzzle Numerical Ability

show n!+1 and (n+1)!+1 is relatively prime. Hint: multiply n!+1 by (n+1). Thanks

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exam Other Question

Welding: A type of steel sheet weighs 3.125 lb. per square foot. What is the weight of a piece measuring 24 in. by 108 in.? (Hint: Be careful of units.) write an equation of the line with the given slope, mand y intercept (0,b)
m=-6/5, b=9