Identify the operation to perform to the equation to isolate the variable.7x = 28
A. Add 7
B. Subtract 7
C. Divide by 7
D. Multiply by 7
Answer: C
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Decide which of the 5 properties of a commutative group (closure, identity, inverse, associative, commutative) hold for the given system.
A. Closure, identity, inverse, and associative only B. All of them C. Closure, identity, associative, and commutative only D. Identity, inverse, and commutative only
Determine where the function is increasing and where it is decreasing.f(x) = -x2 + 4x
A. increasing on (2, ?) decreasing on (-?, 2) B. increasing on (-?, 2) decreasing on (2, ?) C. increasing on (-?, -2) decreasing on (-2, ?) D. increasing on (-2, ?) decreasing on (-?, -2)
Find the quotient using short division.56 ÷ 4
A. 12 B. 14 C. 16 D. 17
Use the quadratic formula to solve the following equation(s):t2 + 10t + 12 = 0 Enter your answer exactly in the form: 
where d and e are integers.
Fill in the blank(s) with the appropriate word(s).