What is a weighted gpa of 4.750 if it's unweighted

If (a, b) is the solution to the system of equations shown above, and a and b are integers, then what is the value of a+b?

We the people of the united states, in order to form a more perfect union, establish justice, insure domestic tranquility, provide for the common defence, promote the general welfare, and secure the blessings of liberty to ourselves and our posterity, do ordain and establish this constitution for the united states of america. according to the preamble which action represents an appropriate role for government

4sentences over a chronicle of a teen killer