Un automóvil parte de un lugar "A" y recorre 30 km en dirección al norte; posteriormente se dirige a un lugar "B" situado en dirección noreste, recorriendo 20 km más y formando un ángulo se inclinación igual a 30 grados. ¿Qué distancia hay entre "A" y "B"?

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

Maryann’s friends loved her bulletin board, and 4 of them asked her to make one for their homes. she offered to make each of her friends a replica of her bulletin board that measures 2 meters by 3 meters. how many kilograms of burlap should maryann collect to complete the bulletin boards for her friends? maryann should collect kg of burlap.

At the movie theatre, child admission is $5.20 and adult admission is $9.70. on sunday three time as many adult tickets as child tickets were sold, for a total sales of $788.90. how many child tickets were sold that day?