¿Cuál es el área de un rectángulo que mide 1/2 cm de base y 3/8 cm de altura ? ¡Por favor ayuda​

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Witch represents the inverse of the function f(x)=1/4x-12

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers