Marshmallows cost 2$ and ounce and have 500 calories in an ounce . cookies cost 3$ an ounce and have 400 calories in an ounce. a mixture of marshmallows and cookies cost $29 and has 4,800 calories. create a system of equations to model this scenario. how many ounces of marshmallows are there in the mixture ?
i’m stuck ! : (

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

What is the distance between point a and b