To estimate the number of trout in a lake, a conservationist catches 250 trout, tags them, and throws them back into the lake. Later, 300 trout are caught; 6 of them are tagged. Approximately how many trout are in the lake?

Kevin has just finished paying off his loan. he was assessed a service charge of $422. he paid off the principal and the interest by making weekly payments of $36.13 for four years. if the principal was $7,150, how much did kevin pay in finance charges, to the nearest dollar? a. $498 b. $365 c. $422 d. $787

Restrictions on f(x) = 1/x+5 and g(x) = x-2

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?