Pls I need help on a hw assignment.

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

One integer is 8 times another. if the product is 72, then find the integers

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