How do you do this ? very confused

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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

Using elimination, what is -4x+2y=-12 4x+8y=-24