Element X decays radioactively with a half life of 10 minutes. If there are 760 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 39 grams?

Agarden consists of an apple tree, a pear tree, cauliflowers, and heads of cabbage. there are 40 vegetables in the garden. 24 of them are cauliflowers. what is the ratio of the number of cauliflowers to the number of heads of cabbage?