Hey just need some help on these Trig questions please

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.