Answer:
9
Step-by-step explanation:
total parts= 3+7=10
12=4 parts
1 part=3
3*3=9
1 coin is 4 ways
2 coins is 4*3 ways
3 coins is 4*3*2 ways
4 coins is 4*3*2*1 ways
so total is 4+12+24+24=64 sums
Answer:
A
Step-by-step explanation:
R+65=135.
Answer:
read the step by step
Step-by-step explanation:
WARNING IM NOT POSTITIVE ITS RIGHT
a:how fast it will reach the ground
b:descending since they are going down
C:subtract a number by 1500