100 points an this (daily) bc i love you guys

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters

Amayoral candidate would like to know her residents’ views on a tax on sugar drinks before the mayoral debates. she asks one thousand registered voters from both parties. these voters are an example of a census population convenience sample simple random sample