What equation represents the line shown on the graphs?

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

Divide. write in simplest form 41/6 divided by 10

Aright triangle can also be a(n) triangle.