Line e has a slope of
Na
Line f is parallel to line e. What is the slope of line f?

What signals you that factoring by grouping is the best method to use when factoring a problem?

Una caja de galletas contiene 16 paquetes y cada una de estas tiene 12 galletas y se quieren repartir entre 6 niños ¿de cuantas galletas le toca a cada niño?

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?