5x + 2 y = 7
4x + y = 8

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?