Write the numerical expression for 1/4 of the sum of 17 and 4?

What expression is equivalent to 1/2(2+3x-6)

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b