Apuppy weighs 9/10 pound. it's mother weighs 8 times as much. how much does the mother weigh?

Isaac wants the equation below to have no solution when the missing number is placed in the box. which number should he place in the box?

Is ofat (-25, 0), (25, 0) co- (0, -15), (0, 15)?

Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample