Leila needs to memorize words on a vocabulary list for Latin class. She has memorized 12 of the words, which is three-fourths of the list. How many words are on the list?​

Ineed me i stuck and i don’t want to get it wrong

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?