YO I NEED HELP PLEASE!! 1. The sum of 6 times a number n and 4 times a number n is -30.
What is the number?

2. Four less than the product of 6 and a number n is -30.
What is the number?

3. Four less than the product of 6 and a number n is -30.
What is the number?

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

Me. i can't figure out this question. give an explanation too. .

Which best describes a central bank's primary goals? limiting inflation and reducing unemployment reducing unemployment and maintaining cash flow controlling stagflation and reducing unemployment managing credit and ensuring the money supply's liquidity