The weights (kg) of grade 6 students in a school are 30, 34, 32, 31, 34, 39, 36, 30, 32, 34, 38, 39, 35, 37, and 38. Find the range of the weights.

Subtract 8 1/6 - 4 5/6 . simplify the answer and write as a mixed number.

For the given quadratic equation convert into vertex form, find the vertex and find the value for x=6 y=-2x^2+2x+2

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