A recipe calls for 5 cups of sugar for 30 servings . How many cups of sugar are needed to make 8 servings?

Can someone answer these problems for me

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

If the perimeter of the garden is 37 ft. the width is x and the length is 15 ft. what is the width of the garden in feet?