$A$, $B$, $C$, and $D$ are positive digits such that $\overline {ABCD} + \overline {BCD} +\overline {CD} +\overline {D} = 2012.$ Find $A+B+C+D.$

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. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

Type the correct answer in each box. spell all the words correctly, and use numerals instead of words for numbers. if necessary, use / for the fraction bar(s).

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?