determine the value of x in the system of equations.

4x+2y=50
x−3y=30
select one:
a. 15
b. 7
c. 2
d. 5

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