11. Tell whether the sequence is arithmetic. If it is, what is the common difference? 19, 12, 5, - 2

Yes; -7
Yes; 7
Yes; 1/7
No

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Adozen bananas weigh 3 pounds how many ounces does 1 banana weigh

Robert is placing sod in two square shaped areas of his backyard. one side of the first area is 7.5 feet. one side of the other area is 5.7 feet. the sod costs y dollars per square foot