Como se podría expresar el siguiente problema con una ecuación " Un triangulo con base igual al lado de un cuadro"...

16 more than the product of 5 and p

21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?

The amount cami raised during last year’s charity walk, $45.50, is 7/10 of the amount she raised this year. which equation represents n, the number of dollars she raised this year?