Express gcd (1976,1776)as a linear combination of 1976 and 1776​

What situation is an example of an observational study

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76