Answer:
2 kids plan to do cross country
Step-by-step explanation:
DNA<span> is </span>made<span> up of six smaller </span>molecules<span> a five carbon sugar called deoxyribose, a phosphate </span>molecule<span> which contains these four (adenine, thymine, cytosine and guanine).</span>
Answer:

Step-by-step explanation:
Given: 
To write: the given expression using summation notation
Solution:
Summation notation helps to write a long sum as a single expression.
In the summation notation, the variable
is called the index of summation.
Let
denote a set of n numbers.
Then in summation notation,


Answer:
Step-by-step explanation:63
Answer:
Step-by-step explanation:
take 52 degree as reference angle
using tan rule
tan 52=opposite/adjacent
1.27=x/21
1.27*21=x
26.67=x
26.9=x