What is a solution to the equation 5x + 2y = -1? (-1, 4) (2, -4) (-2, 5) (1, -3)

What is the solution of the systems of equations? y=2/3x+3 x=-2

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

If i purchase a product for $79.99 and two accessories for 9.99 and 7.00 how much will i owe after taxes applies 8.75%