Answer:For substantial health benefits, adults should do at least 150 minutes
Explanation:
Answer:
Hi there!
The answers are stated below:
Emulation- Doing what someone older does
Positive reinforcement- smiling when someone does something good
Social exclusion- Ignoring someone
1 st expression = (a+b)^2
(a+b) (a+b)
2nd expression = a^2-b^2
= (a+b) (a-b)
therefore hcf = ( a+b)
Jackie could call someone else to pick them up from the party since Rosa is not able to drive
