Solve the following system of equations

2x + 4y + 10z
x − 2y + 5z = −4
3x −4y −3z = 15

Select the appropriate response:

A) x = 2, y = 3, z = 5
B) x = 4 y = 3, z = 5
C) x = 2, y = 3, z =9
D) Not possible to solve

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?

Using the rise/run counting method, the slope of the line is