Sandra colored 1/3 of her picture black, as shown. what percent of her picture did she color white

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^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

How can writing phrases as algebraic expressions you solve problems?