A farmer uses 180 lb of a chemical on a 40-acre field. How many pounds will he need for a 220-acre field? Assume the same rate of application.__________ lb
Fill in the blank(s) with the appropriate word(s).
990
Mathematics
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Evaluate.
4
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation.
÷ 
A. -x
B. 
C. x
D. 
Mathematics
Provide an appropriate response.For the function f(x) = 3x2 - 4x + 5, find f(-2a) - 2.
A. 12a2 + 4a + 3 B. 12a2 + 4a + 2 C. 12a2 + 8a + 5 D. 12a2 + 8a + 3
Mathematics
Find the sum without the use of a number line.-14.9 + 7.5 + (-20.7)
A. 13.3 B. 43.1 C. 1.7 D. -28.1
Mathematics