The required equation is:

Step-by-step explanation:
Given
Let a be Anne's Age
and
b be Betty's age
Now we will onvert the given word problem in the form of equation step by step
"twice Betty's age." will be represented by 
Then
"3 years younger than twice Betty's age." will be represented as: 
Now
"Betty's sister, Anne, is 3 years younger than twice Betty's age."

Hence,
The required equation is:

Keywords: Word problems, linear equation in two variables
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Answer:
7
Step-by-step explanation:
35 Toys ÷ 5
5 Rows ÷ 5
=
7 Toys
1 Row
=
7 Toys
Row
= 7 Toys per Row
Hope this helps :)
Answer:
number 1 is 41.57
Step-by-step explanation:
Since a regular hexagon is comprised of six equilateral triangles, the formula for finding the area of a hexagon is derived from the formula of finding the area of an equilateral triangle. The formula for finding the area of a hexagon is Area = (3√3 s2)/ 2 where s is the length of a side of the regular hexagon.