Is 13-yard gain a positive or negitave integer? explain the meaning of zero in this situation.

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

Spencer has 1/3 pound of nuts he divides them equally into 4 bags what fraction of a pound of nuts is in each bag

Adele is five years older than timothy. in three years, timothy will be 2/3 of adele’s age. what is adele‘s current age?