Answer:
Area of a square is given by:
A = a2
where a = length of side
60 blocks in 30 min
18 blocks in 9 min
Method 1
60-18 = 42
42 blocks in 21 min
Method 2
30-9 =21 min
We know that
1) <span>Variable x is 7 more than variable y
so
x=y+7
2) </span><span>Variable x is also 1 less than y.
x=y-1
therefore
the answer is
the option
</span><span>x = y + 7
x = y – 1</span>
The Answer Is 14.6
I just used a calculator to do it but if you want me to explain, I will.
