(2x-5y) + (x+y)
= (2x+x) + (-5y+y)
= 3x + (-4y)
= 3x-4y
So option A is the correct one.
Answer:
5/9
Step-by-step explanation:
3 would be the volume hopes this is good
Answer:
Option C.
Step-by-step explanation:
Total population = 1000 snails
AA = 160 snails
Aa = 480 snails
aa = 360 snails
Frequency of each type.



Now, we get

he frequency of the A allele in this population is 0.4.
Therefore, the correct option is C.
13/23% = 1300/23 (56.52)
<em>Therefore, 13 is 29% of 1300/23 (56.52)</em>