Solve by using substitution or elimination by addition
2x - 5y = 27
3x + 2y = -7
select the correct choice below and fill in the answer box within your choice.
a. the unique solution to the system is (type an ordered pair.)
b. there are an infinite number of solutions.
c. there is no solution.

A. The unique solution to the system is

Step-by-step explanation:

 You can follow these steps to solve the system of equations by the Elimination Method:

- Multiply the first equation by -3 and the second equation by 2.

- Add both equations and solve for "y".

Then:

- Substitute the value of "y" into any original equation to find the value of "x". Then:

Therefore, the unique solution to the system is

step-by-step explanation:

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315