68 is not a prime number. The prime factorization of 68 would be 2 x 2 x 17.
<span>21x+28=14
x= -2/3 or -0.666666666
</span><span>9x+12y=6
x=2/3 or .666666666
y=0</span>
Slope: 0.500/2.000 = 0.250
x: 32/1 = 32.00000
y: -32/4 = -8
Answer:
a) The number of students who enjoy reading only.
A suitable matrix calculation tells you
(x, y, z) = (-8, -1, -3).