Answer:
A. The student earned $18 for cleaning out his neighbor's garage.
Step-by-step explanation:
<em>Since it given that a student spend $18 for a haircut this week also means that she/he gave away $18 also known as -$18.</em>
<em>Thus, base on the given answer choices:</em>
<em>[A] is the only one that can make it positive.</em>
<em>Going through all answer choice:</em>
<em>A. The student earned $18 for cleaning out his neighbor's garage.</em>
<em>Earned = +</em>
<em>B. The student paid his little brother $18 for doing his chores.</em>
<em>Paid = -</em>
<em>C. The student purchased a gift for his mom for $18.</em>
<em>Purchased = -</em>
<em>D. The student gave $18 to a friend.</em>
<em>Gave = -</em>
<em>Hence, Answer is A. The student earned $18 for cleaning out his neighbor's garage.</em>
<u><em>~lenvy~</em></u>
I think the answer is either C. or D., but my best guess would be D.
Answer:

Step-by-step explanation:
We can draw a perpendicular line through the two parallel lines to create a pentagon (there is an image attached in case you need to see where the line intersects the two parallel lines). Since the angle sum of a pentagon is
, we can solve for
.
(Angle sum of pentagon is
)
(collect like-terms)

Hope this helps :)
Answer:
0.28
Step-by-step explanation:
Hardy-Weinberg equilibrium states that the frequency of allele and genotype will remain the same from generation to generation in the the absence of evolutionary influences. Such evolutionary disturbance include: mutation, non-random mating, gene flow, natural selection, genetic drift and others ,
His equilibrium is denoted by the equation;
p² + 2pq + q² = 1
p² + 2pq represent the dominant phenotype which comprises of f (DD) = p² and f (Dd) = 2pq and is equal to 0.72
then the f(dd) =q² = 1 - 0.72 = 0.28