Pls help! I dont understand

1- identificar select the category that corresponds to each term. january 23 11: 59 pm unlimited attempts remaining grade settings 276-279 vocabulary list modelo fiesta quinceañera casada adolescencia viudo juventud navidad niñez vejez aniversario de bodas divorciado madurez cumpleaños soltera

X+ y = 5 ; x - y =3 solve using linear combination

At 6 1/2 cents per pound of string beans how much does 7 pounds cost