Look at the problem and work shown. in which line was an error made and what should have been done differently? six less than 4 times a number is 50. what is the number? 6 – 4n = 50 (line 1) 6 – 6 – 4n = 50 – 6 (line 2) –4n = 44 (line 3) –4n÷ –4 = 44÷ –4 (line 4) n = –11 (line 5)

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

One positive number is 9 more than twice another. if their product is 95, find the numbers

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.