Two numbers have a difference of 0.7 and a sum of 1 . what are the numbers

The speed of a falling object increases at a constant rate as time increases since the object was dropped. which graph could represent the relationship betweent time in seconds, and s, speed in meters per second? speed of a falling object object over time

Plz hurry evaluate the expression a+b where a=8 and b=19

Factor the polynomial by its greatest common monomial factor.