The answer is true. It does increase
Given:
a varies jointly as b and c.
a=6 when b=2 and a=3.
To find:
The variation constant and the equation of variation.
Solution:
a varies jointly as b and c.

...(i)
Where, k is the constant of proportionality.
a=6 when b=2 and a=3.




The value of k is 1.
Putting k=1 in (i), we get


Therefore, the variation constant is 1 and the equation of variation is
.
The answer is A = 3 and B = 32
38/50 so 19/25 which is 76%
it WILL hurt his grade
4×+7y=-12 __ -4x-y=-12 ________ 0x+6y=-24 , so you eleminated by it self 6y/6=-24/6 , you get : y=-4 and then you plug in 4x+7(-4)=-12 , that's your answer 4x-28 =-12 , you divided in both side 4x=-12+28 , 4x=16 , and then x=16/4 =4 , so x=4