Which expression is represented by the phrase "the square of y decreased by the quotient of 28 and 7"?

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

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

The amount cami raised during last year’s charity walk, $45.50, is 7/10 of the amount she raised this year. which equation represents n, the number of dollars she raised this year?