You should explain whether a situation is linear or not. for instance, i have 2 scenarios below. which one is linear and how do you know?

situation a: my cell phone charges me $100 to register and then $0.10 per minute. how much will i be charged for 55 minutes?

situation b: bacteria double every day. if a bacteria culture has 5 organisms on the first day, how many bacteria will there be on day 10?

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

Acompany manufactures large valves, packed in boxes. a shipment consists of 1500 valves packed in 75 boxes. each box has the outer dimensions 1.2 x 0.8 x 1.6 m and the inner dimensions 1.19 x 0.79 x 1.59 m. the boxes are loaded on a vehicle (truck + trailer). the available capacity in the vehicle combination is 140 m3. each valve has a volume of 0.06 m3. - calculate the load factor on the box level (%). - calculate the load factor on the vehicle level (%). - calculate the overall load factor (%).

What is 1/3x5 on anuber line what does it look like on a number line