Arif’s grandfather is 9 times as old as Arif. Which of these could be the age of Arif’s grandfather? PLSS THIS IS SO CONFUSING!1

Danny draws a transversal, t, on two parallel lines ab and cd, as shown below: he makes the following table to prove that the alternate interior angles are equal: which is the missing justification? (6 points) corresponding angles formed by a transversal on parallel lines are supplementary. corresponding angles formed by a transversal on parallel lines are congruent. co-interior angles formed by a transversal on parallel lines are congruent. co-exterior angles formed by a transversal on parallel lines are congruent.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)