Answer:
3 tens
Step-by-step explanation:
4 tens and 5 ones is 45
so 45 minus 15 is 30
so 3 tens
2) D
5) C
Step by Step
IM SUCH AN INFLUENCER :D
2.94
SA
Area of one plane moultyply by number of planes
0.7*0.7*6
=2.94
