PLEASE PLEASE HELP, Which of the following choices matches the system? y ≥ 2x + 1 and y ≥ -x + 3 y ≤ 2x + 1 and y ≤ -x + 3 y ≤ 2x + 1 and y ≥ -x + 3 None of these choices are correct.

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

Select all the expressions that will include a remainder.