Which gas law has the assumptions of a fixed amount and temperature of a gas?

The parameters taken into account in gas laws are pressure, temperature, volume and amount.Gas laws find the relationships between any 2 parameters keeping the remaining parameters at constant. 
In this case, the parameters that are fixed are temperature and fixed amount. This means that the gas law is Boyle's law.
Boyle's law states that pressure of gas is inversely proportional to volume of the  gas at constant temperature and fixed amount.
PV = k 
where P - pressure, V - volume and k - constant 
Correct answer is therefore Boyle's law.

Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.

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