Subtract and, if possible, simplify.
- 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Use an Euler diagram to determine whether the argument is valid or invalid.No even number is divisible by 7.42 is an even number. 42 is not divisible by 7.
A. Valid B. Invalid
Mathematics
Solve the equation.9y2 + 27y + 20 = 0
A. 
B. 
C. 
D. 
Mathematics
Solve the following circle graph problems.If total expenses are $960 and the cost of books is $48, how many degrees in a circle graph would books represent?
A. 20° B. 22.5° C. 15° D. 18°
Mathematics
Simplify the expression by combining like terms, if possible.-3(10r + 2) + 5(2r + 3)
A. -20r + 9 B. 7r - 1 C. -36r D. -20r + 2
Mathematics