Carrots sell for $2.10 per pound, and crackers sell for $2.90 per pound. glen bought some carrots and some crackers. the total weight was 2.3 pounds and cost $6.03.how many pounds of carrots and how many pounds of crackers did glen buy?
a. 0.5 pounds of carrots; 1.8 pounds of crackers
b. 0.8 pounds of carrots; 1.5 pounds of crackers
c. 1 pound of carrots; 1.3 pounds of crackers
d. 1.5 pounds of carrots; 0.8 pound of crackers

Let us assume the amount of carrots bought by Glen = x pounds
Also
Let us assume the amount of firecrackers bought by Glen = y pounds
Then
x + y = 2.3
x = 2.3 - y
Also 
2.10x + 2.90y = 6.03
Now putting the value of x from the first equation in the second equation, we get
2.10(2.3 - y) + 2.90y = 6.03
4.83 - 2.10y + 2.90y = 6.03
0.8y = 6.03 - 4.83
0.8y = 1.2
y = 1.2/0.8
   = 1.5
Now putting the value of y = 1.5 in the first equation we get
x = 2.3 - y
   = 2.3 - 1.5
   = 0.8
1.5 pounds of carrot ; 0.8 pounds of crackers. Then the correct option among all the options given in the question is option "d".

The answer would be -3.9> -4.5