2b + 21 < 22
b is the unknown number so multiply it by 2 to get 2b then add 21, bring the less than sign and write the 22 after the less than sign
Answer:80 pounds
Step-by-step explanation:
You take 8×10=80
8 3/4 x 8 = 64 24/4
70 inches
The difference starts off by 7. Then it continues to double. Then the answer is 14, 28, 42. The answer doubles every time.