Answer:
a+4b
Explanation:
Since the length is 4a-2b, that means there is 2 of those, since the perimeter is 2l+2w, which basically means 2 values of the length plus 2 values of the width. In this case, the length is 4a-2b so that means we have to subtract twice its value from the perimeter, 10a+12b.
When you do that, you get 2a+8b, which must be divided into 2 because there is supposed to be 2 values of the width. That gets you your final answer, a+4b.
<span>Social relationships both quantity and quality affect mental health, health behavior, physical health, and mortality risk. </span>
I, currently, enjoy a few extra servings of protein, as I burn the calories soon thereafter. The other food groups I balance in accordance with the recommended intake.
A zygote forms when a male sperm cell fertilises the female egg cell.
An embryo is the early stage of development of the zygote.
A fetus is a point when the embryo begins to develop into a human.