Add or subtract as indicated. Simplify, if necessary.
- 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the product.7a2x7(8a9x5 - 2x4 + 2a)
A. 56a9x5 - 14x4 + 14a B. 56a11x12 - 2x4 + 2a C. 56a11x12 - 14a3x11 + 2a D. 56a11x12 - 14a2x11 + 14a3x7
Mathematics
Add or subtract as indicated. Simplify if necessary.
+ 
A. 
B. 
C. 
D. 
Mathematics
Translate to a proportion and solve. Round to the nearest hundredth, if necessary.21 is what percent of 50?
A. 0.42% B. 4200% C. 4.2% D. 42%
Mathematics
Write the number without exponents.2.95 × 10-4
A. 0.0000295 B. 0.00295 C. -295,000 D. 0.000295
Mathematics