Respuesta :

Answer:

15/4.

Step-by-step explanation:

4th term = a1 r^3

= 30(1/2)^3

= 30/8

= 15/4.

DrInvictus

Answer:

It's 3.75 or 15/4

Step-by-step explanation:

When you put it in proper form, it becomes a4= 30 x (1/2)^3, when computed, it equals 3.75. Thank you.