Solve the system using substitution.
x + y = 8
y = 3x

a. (4, 12)
b. (2, 6)
c. (1/2, 3/2)
d. (-4, -12)

Louis wants to carpet the rectangular floor of his basement. the basement has an area of 864 square feet. the width of the basement is 2/3 it's length. what is the length of louis's basement

What’s the answer ? use the picture to see the problem

Consider the triangle. which shows the order of the angles from smallest to largest? angle a, angle b, angle c angle b, angle a, angle c angle b, angle c, angle a angle c, angle a, angle b