exam Maths Puzzle Numerical Ability

Hi,I need help multiplying these problems 1.158x73= 2.478x34= 3.97x46= 4.37x35= 5.486x28= 6.381x89= 7.827x98= 8.613x79= 9.724x47= 10.259x25= 11.4,235x73= 12.8,652x42= 13.9,845x68= 14.1,037x46= 15.6,472x29= 16.5,876x34= 17.6,825x47= 18.8,984x54=

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Please help solve this
4x^2+8x-60
an airplane flew 450miles from miami to tallahassee in 1.5hrs less time than it took to fly 1,200miles from to newark.if the plane few at the same rate on both trips,find the rate of the airplane.