Using the least-squares regression method, which is the line of best fit? line a line b line c line d

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

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?

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b