If anyone me out with these problems ill give extra points and brainlest

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?

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

How do you write something in scientific notation?