What is the difference between the largest and smallest common factors of 88 and 99?

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3

Using the information in the customer order, determine the length and width of the garden. enter the dimensions. length: feet width: feet