Suppose the Humane Society claims that 30% of U. S. households own cats. You believe your community is different than the U. S. percentage. To test the claim, you take a simple random sample of 400 households and find that 21% own cats. Test at 1% significance.

Solve: 3x+y=6 4x-2y=18 show all work !

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.