Simplify 5 (x + - 4) + - 10 (9x + 1)

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

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!

Me n o w. i need t h i s. 10 points