what is the slope of the graph in the picture?

Ined this is due tomorrow and i dont know the answer can you find all the exponents

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!

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52