N over 4 - 4 = -7 (solve for n)

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

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The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet