A cada número natural se le asigna el doble de su mismo; cuál es el dominio y el campo de valores ?

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. after tax the total is 45.99. what percentage of the subtotal is the total?

How do i i solve this equation? -18 = x/3 + 3

Aiko jumped rope for 20 min and stopped at 8: 05 when did she start