Answer: 5.4
Step-by-step explanation:
A is correct because Side PQ of one triangle corresponds to side ST of the other triangle since are located at the same spot.
The formula for that is V=

but the answer is 4,940cm³ so C.
Answer:
7
Step-by-step explanation:
because 105/15=7
84/12=7
28/4=7
so 1x7=7