Ineed to know what the last missing number is and how to do part a

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

Evaluate the expression. (9 + 5)(3 + 2)0

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.