The difference of two numbers is 491. The smaller of the numbers is 578. What is the other number?

1049

Step-by-step explanation:

let the greater no. be x.

Since,the difference of the two numbers has a positive value we must subtract the smaller value from the greater value.So,the eqn becomes

x-578=491

or,x=491+578

therefore,

x=1049

b.-4 units

all you   do is count how many times you move