Solve the formula for the specified variable.I = 
for r
A. r = 
- IR
B. r = 
C. r = 
D. r = 
Answer: B
Mathematics
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Write the phrase as a mathematical expression. Use x as the variable.Some number minus 140
A. 140 B. x + 140 C. 140x D. x - 140
Mathematics
Add or subtract. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
Mathematics
Add.
A. 122,422 B. 111,322 C. 112,422 D. 111,422
Mathematics
Identify the values for which the rational expression is undefined.
A. x = 4 or x = -2 B. x = -4 or x = 2 C. x = 0 D. x = 8 or x = -8
Mathematics