How the bloody hell do i answer these? explain how you did it.1. in the xy plane, line m passes through the points (a,0) and (0,2a), where a> 1. what is the slope of line m? a)-2 b)-1/2 c)2 d)-2a e)2a2. first, 3 is subtracted from x and the square root of the difference is taken. then, 5 is added to the result, giving a final result of 9. what is the value of x? a)3 b)4 c)5 d)16 e)193. if s is the set of positive that are multiples of 7, and if t is the set of positive integers that are multiples of 13, how many integers are in the intersection of s and t? a)none b)one c)seven d)thirteen e)more than thirteen4. a florist buys roses at $0.50 each and sells them for $1.00 each. if there are no other expenses, how many roses must be sold in order to make a profit of $3.00? a)100 b)150 c)200 d)300 e)600