What is the value of x?​

Why do interests rates on loans to be lower in a weak economy than in a strong one

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park is the cost of admission proportional to the amount of people entering the amusement park? explain.

Yvaries inversely as x. y =12 when x=5. find y when x=4