For each of the following cases, identify the order with respect to the reactant, A

For each of the following cases, identify the order with respect to the reactant, A. Case (A ----> product) 1. The half-life of A increases as the initial concentration of A decreases. 2. A twofold increase in the initial concentration of A leads to a fourfold increase in the initial rate. 3.A twofold increase in the initial concentration of A leads to a 1.41-fold increase in the initial rate. 4.The time required for [A] to decrease from [A]0 to [A]0/2 is equal to the time required for [A] to decrease from [A]0/2 to [A]0/4. 5.The rate of decrease of [A] is a constant.