Huilan is 6 years younger than Thomas. The sum of their ages is 64. What is Thomas's age?

Δabc is reflected across line l to form δ alblcl, and a¯¯¯al¯¯¯¯ intersects line l at point d. which equation is not necessarily true?

Find the solutions for a triangle with a =16, c =12, and b = 63º

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document