What are the domain and range of (x)=(1/5)x

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 expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Which of the fallowing best completes the sequence 5,10,15, a) 30 b) 22 c)25 d)35