A number x, rounded to 1 significant figure is 40. Write the error interval

Barbara's piano instructors house is 7 1/8 miles from her house. after biking for 1 3/4 miles she stops to rest how much longer does she need to bike to reach her instructor's house

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

The length and width of a rectangle are consecutive even integers the area of the rectangle is 120 squares units what are the length and width of the rectangle