Answer:
ASA
Step-by-step explanation:
Mark is 20. 55 - 15 = 40, 40 / 2 = 20. Mark is 20
There’s something called a calculator
31 + (4*2^2 + 8*2) + (3*2^2 + 5*2 + 20) + (7*2 + 30) = 129
1. They are all round.
2.The kids got each other sick. They were contagious.
3. 15: 15, 30, 45
20: 20, 40, 60, 80
25: 25, 50, 75, 100
The multiples of five will either end in 0 or 5.