Answer:
3x + 21
Step-by-step explanation:
3(x + 7) Distribute
3x + 21
Answer:
23000
Step-by-step explanation:
Answer:
The eight people to march in a sportsmanship parade.
Step-by-step explanation:
Answer:
is right answer = 2 is a correct answer
Step-by-step explanation:
Area = 8 × 5
Area = 40^2
Perimeter is the length around the edges
Therefore it is 8+8+5×5 (since there are 4 edges)
Perimeter = 2×8 + 2×5
= 40 + 10
= 50cm
