jimmy has 90 billion watermelons and spends on a rocket that cost 42 billion melons how much will jimmy have?

48 billion

Step-by-step explanation:

90 billion subtracted by 42 billion is 48 billion

i used this to make it simple:

if it was just the 90-42 is would give you 48 then just add the zeros to have 48 billion

28

step-by-step explanation:

8+8+6+6

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540