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Questions in Grade Middle-school

[Open]If the area of an ice rink is 404 square yards, what is the perimeter of the rink? (Note: Additional information about the shape of the rink is needed to solve for the perimeter. Assuming it is a rectangle, more details about the dimensions are required.)

[Open]There are 172 South American animals in the Springdale zoo, which is 45 more than half of the African animals in the zoo. Write an equation you could use to find \( n \), the number of African animals in the zoo.

[Open]What are the main characteristics of the first stage of photosynthesis?

[Open]What is the information gathered in a scientific investigation called?

[Open]One side of a cube is 6 cm long and it weighs 220 g. What is the density of the cube?

[Open]What is 1.75 as a mixed number?

[Open]A local park rents paddle boats for $5.50 per hour. You have $22.00 to spend. How many hours can you rent a boat?

[Open]What number is halfway between 24 and 98?

[Open]How do you solve the equation? \[ 0.15 - 0.2x = 0.3(x + 3) \]

[Open]Mr. Thomas puts up fence posts from one end to another, equal distances apart. There are 27 posts. The width of each post is 10 centimeters. The distance between two posts is 30 meters. Find the length of the fence.