The normal formula to find force is F = m*a. What kind of math do you need to do to find the mass of an object?

- Divide: F / a
- Divide: a / F
- Multiply: F* a
- Subtract: F - a

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)

pecialized keyboards