no lower than a 70% to pass a test you cannot have anything lower than a C
Matthew sells tickets for a school lottery at 3$/each. He wants to know how much profits he will make according to the number of tickets sold knowing that he starts with 2$.
Explanation:
Single displacement reaction is defined as the reaction in which more reactive element displaces a less reactive element from its chemical reaction. The reactivity of metal is determined by a series known as reactivity series. The metals lying above in the series are more reactive than the metals which lie below in the series
