Number 7 you divide 6.48 by 4
She would have $23.52 because 12 times 3 is 36 and 36-12.48=23.52
60/5 x 132/x
60x = 660
Divide 60 from both sides
x = 11 miles
Hope this helps!
0.05x+0.12 (19660-x)=2060
Solve for x
X=4274.29 at 5%
19,660−4,274.29
=15,385.71 at 12%
In 2005 Mary had 10 stamps in her collection