Answer:
+3
Step-by-step explanation:
first: -3(6)÷3 = -18 ÷ 3= -6
2nd: 2²=4
3rd: 5+4-6=+3
23 over 21 is the right answer
23
----
21
Answer:
755,160 ways
Explanation:
We're told that 31 cars are in a race.
Considering the order in which the cars can finish in the top 4 positions, any of the 31 cars can finish in the first position, any of the remaining 30 cars can finish in the second position, any of the remaining 29 cars can finish in the third position and any of the remaining 28 cars can finish in the fourth position, so the different numbers of ways can be determined as seen below;
Answer:
b
Step-by-step explanation:
Answer:
9 acres remain
Step-by-step explanation:
First day:
3 acres
Second day:
5 acres were planted. 5 + 3 = 8
Third day:
4 acres were planted. 4 + 8 = 12
If 3 acres were destroyed, we just subtract!
12 - 3 = 9.
9 acres of seedlings remain.
I hope this helped! :)