Evaluate the following:
47×280
47×280=4×2807
=4×40
=160.
Observe the pattern and complete it.
15873×7×1=111111
15873×7×2=222222
15873×7×3=333333
15873×7×.....=444444
15873×7×5=...................×7×6=666666
Compare the given fraction and replace '□'by an appropriate sign '<or>'
47□49
Evaluate the expression when x=-45andy=13
2x+6y