Would anyone get willing to help me with probability questions? please answer asap

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2