Answer + Step-by-step explanation:

Check the illustration I provided
Answer:
a = 9
b = 2
Step-by-step explanation:
Given : a = 9
a = b + 7
9 = b + 7
b = 9 - 7 = 2
Answer:
This survey means that about 14 in every 25 adults in the survey had a smartphone.
Step-by-step explanation:
3
3/5 x 3 = 9/5
9/5 = 1 4/5
Answer:
the zero property
Step-by-step explanation: