6 builders can build 10 houses in 30 months .How long would it take 18 builders to build the same number of house ?

The step function g(x) is defined as shown. what is the range of g(x)? ***answer choices in picture.

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°.

What is the range? can’t seem to find it out