I’m not sure how to solve this. If anyone can help, I would really appreciate it.

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

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 !

Can someone me find the original price? the discount is 5% and the sale price is $68.40