If `t=s-3`, what is `s+t`?

If 2s-3t=3t-s , what is s in terms of t?

If 2r=s and 24t=3s , what is the r in terms of t?

If (t)/(s)=(3)/(4) , what is the value of (3s)/(4t) ?

If 3s+5t=10 , and 2s-t=7 , what is the value of (1)/(2^(s))+3t ?

Time for 20 oscillations of a pendulum is measured as t_1 = 39.6 s ,t_2 = 39.9s , t_3 = 39.5s , What is the precision in the measurements ? What is the accuracy of the measurement ?

Relation between distance covered s and time t of a moving particles is , s = 2t^(3)-4t^(2)+3t , What will be the velocity and acceleration after 3 s?

If s = t + sqrt((r^(3))/(q)) , what is the value of r in terms of q, s and t ?

Time for 20 oscillations of a pendulum is measured as t_(1)= 39.6 s, t_(2) = 39.9 s and t_(3) = 39.5 s . What is the precision in the measurements ? What is the accuracy of the measurement ?

The displacement of particle with respect to time is s = 3^(t3) - 7t^(2) + 5t + 8 where s is in m and t is in s, then acceleration of particle at t = ls is