1/3 of a number equals 12 which equation could be used to find the number

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

The quotient of 15 and a number is 1 over 3 written as an equation

In physics, if a moving object has a starting position at so, an initial velocity of vo, and a constant acceleration a, the the position s at any time t> o is given by: s = 1/2 at ^2 + vot+so solve for the acceleration, a, in terms of the other variables. for this assessment item, you can use^to show exponent and type your answer in the answer box, or you may choose to write your answer on paper and upload it.