∠A and \angle B∠B are vertical angles. If m\angle A=(8x-20)^{\circ}∠A=(8x−20) ∘ and m\angle B=(3x-5)^{\circ}∠B=(3x−5) ∘ , then find the value of x.

Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81