1.s varies directly as m

Question

2.p varies inversely as n
3.j varies directly as q and inversely as the square of r
4.the pressure(p) of a gas is directly proportional to the temperature (t) and inversely proportional to its volume(v)
5.t varies directly as a and inversely as b
6.y varies directly as x and inversely as the square of z
7.z varies jointly as x and y
8.a varies jointly as b and c
9.y varies inversely as x

Answer 1

direct variation: a = kb
inverse: a = k/b

now plug in a few of your variables. For example,

#5. t = ka/b
#7. z = kxy
and so on