Experison form I hope this helps
80% of a gram.
One gram is $100, aka $100 is 100% of a gram, so $80 would be 80% of a gram.
-3,2 means on quadrant 4 and 1,2 is in quadrant 1
20 because 19 16/33 is the exact answer. Since they ask about how much that can be rounded up to 20
add the two equations together
5a+5b=25
-5a+5b=35
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0 + 10b =60
divide by 10
b=6
5a + 5b = 25
5a +5(6) = 25
5a +30 =25
subtract 30 from each side
5a =-5
divide by 5
a = -1
Answer (-1,6)
or a=-1 b=6
