If you draw 40 dots in one row, then add a second row of 40 dots, you will get your answer. You can count the dots and then get your answer, which is 80.
Answer:
22.5
Step-by-step explanation:
start by doing 4 squared, since theirs an n on the 4 you have to leave the n attatched to 16 (4 squared is 16) then you have to subtract 10 from -36 and you get 46. after you do that you have to divided 16 from both sides. witch leaves you with n= 22.5
Answer: The area is 1 1/4. The perimeter is 6.
Step-by-step explanation: 2.45 is about 2.5. 5/8 is about 1/2. To find the area we need to multiply length times width. 2.5 is 2 and 1/2 which is 5/2. 5/2 times 1/2 is 5/4. To simplify it divide 5 by 4 which is 1 with remainder 1. 5/4 is 1 1/4. Therefore the area is 1 1/4 meters squared. To find the perimeter we have to add length + length + width + width. . 2.5 is the same thing as 2 1/2. 5/8 is about 1/2 if we use benchmarks. 2 1/2 + 2 1/2 + + 1/2 + 1/2 is 6. The perimeter is 6.
<u>Part A</u>
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and 
<u>Part B</u>
Diagonals of a parallelogram bisect each other, so
Solving by substitution,
Multiplying both sides by 3,
So, 
<u>Part C</u>
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