Typically 8 but it can be configured to hold 9. The link below has these specs and more for this and other popular private jets.
The Learjet 45 can travel at speeds of up to 533mph or 858km/h. The Learjet 45 is a business jet aircraft, with a cruising speed of 500 mph (804km/h) and costs around $11.5 million US Dollars new.
120 knots
well i think there where 45
Depends on the aircraft. Some planes such as the 787 and 320 can carry up too 250 passengers, While an Embraer 145 can only hold about 25-45.
there is 45
45
about 14
At least 45 passengers
Typically six.
45 passangers
It depends on which model and brand. Some hold as few as 6, some hold as many as 13 or 14.
45 gallons