If the scale factor of Triangle A to Triangle B is 5:6, what is the perimeter of Triangle A if the perimeter of Triangle B is 42?

If Triangle CDE ~ Triangle FGE, find the value of x if side CE = 27, side EF = x, side DE = 24, and side EG = 32.

If Triangle HBN ~ Triangle LYR, find the value of x if side HB = 28, side YL = 21, side HN = 3x-7, and side RL = x+11.

How do you solving the solution of each system using elimination?

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?