Me. i have been staying up all night trying to do these questions, just plz.

Anna is no more than 3 years older than 2 times jamie’s age. jamie is at least 14 and anna is at most 35. which system of linear inequalities can be used to find the possible ages of anna, a, and jamie, j?

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12