Answer:
She bought 12 gallons.
41.49 / 3.68 = 11.2
*I rounded it to 12 because you can't go below 11.2*
12 x 3.68 = 41.49
Answer:
using the phytogaran theory we get 17 inch as the length of the diagonal
Multiply the first equation with (-1)
you should get this
-6r + 3t = -6
6r + 8t = -16
start to eliminate
11t = -22
divide by 11
t = -2
substitute
6r - 3(-2) = 6
6r + 6 = 6
6r = 6 - 6
6r = 0
r=0