The revenue for a production by a theatre group is y = -4t2 + 30t, where t is the ticket price in dollars. The cost for the production is y = 30 - 5t.
Determine the ticket price that will allow the production to break even.

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Ineed i been stuck on this question since yesterday

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone