Read the register number and mobile number of a student. if the register number does not contain exactly 9 characters or if the mobile number does not contain exactly 10 characters, throw an illegalargumentexception. if the mobile number contains any character other than a digit, raise a numberformatexception. if the register number contains any character other than digits and alphabets, throw a nosuchelementexception. if they are valid, print the message ‘valid’ else ‘invalid’.

x+2 because it just doubles hon so the pattern can actually tell you the expression.

so for example,

if x=2 then 2+2 is 4

if x=4 then 4+4 is 8

and so on and so forth.

i really hope that this makes sense and you out in a way hon: )

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the fed will purchase bonds from banks to inject money into the banking system. the banks can use these funds to provide loans to individuals and businesses.

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try looking it up that is always

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50 vo; ts

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