Set up the percent proportion for the application problem. Do not try to solve for any unknowns.A chemical is 78% pure. In 760 grams of the chemical, how much is pure?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: A
Mathematics
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Find the area.
A. 22 m2 B. 60.5 m2 C. 44 m2 D. 121 m2
Mathematics
Perform the division. Write the answer with positive exponents.
A. 5x3 + 6x2- 7 + 
+ 
B. 25x8 + 6x2 - 7 + 
+ 
C. 5x3 + 6x2 - 7
D. 5x3 + 30x7 - 35x5 + 15x3 + 7x2
Mathematics
Evaluate the expression.r = 
, v = 
, w = 
r + v
A. 
B. 
C. 
D. 
Mathematics
Multiply.(-9x3)(7x4)
A. -63x12 B. 16x7 C. 16x12 D. -63x7
Mathematics