The value of a 4 in the one thousands place is what FRACTION of the value of a 4 in the ten thousands place?

The gades foundation and hbm corporation are eager to donate generously to their favorite charities. the gades foundation donated $250 in the first month, and each month afterward their cumulative donation total increases by 100$ the hbm corporation donated $64, in the first month, and each month afterward their cumulative donation total increases by 75%. in which month will the hbm corporation's cumulative donation total first exceed the gades foundations' cumulative donation total?

Which function is represented by the graph

If 20% of a number is 35, what is 50% of that number?