Solve system of equations

3x+6y=3
X+2y=1

Im literally having a mental breakdown

The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)