N is an integer such that 3n+≤19 and 10n/(n^2+16) >1 Find all possible values of n

Need this at the city museum, child admission is 6 and adult admission is 9.20. on tuesday, 132 tickets were sold for a total sales of 961.60. how many adult tickets were sold that day?

If f(x)=3 over x+2 - square root x-3 then f(7)=

The slope of the line whose equation is y - 3 = 0 is 0 3 no slope