If the simple interest on $1000 for 10 years is $400, then what is the interest rate?

Maria solved an equation as shown below. what is the solution to maria’s equation?

Given abc find the values of x and y. in your final answer, include all of your calculations.

Mariano delivers newspaper. he always puts 3/4 of his weekly earnings in his savings account and then divides the rest equally into 3 piggy banks for spending at the snack shop, the arcade and the subway