There were n signers of the declaration of independence. the oldest was benjamin franklin, who was yy years old. 7 is 10% of yy and nn is 80% of yy. how many signers were there?

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse. a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?

Find the distance between (7,-6) and (-3,-9)

Given a normal distribution with µ=20 and σ = 4, what is the probability that x> 24 x< 24 x< 24 or x> 24