Find the missing number to make these fractions equal. 6/? = 4/12

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

Si la base de un triángulo isósceles mide 70 m y el ángulo opuesto a ésta mide 58°; entonces ¿cuánto mide la altura de dicho triángulo? a) 21.87 m. b) 40.01 m. c) 43.74 m. d) 63.14 m.

Me d is also an option but i couldn't get it in the picture