Simplify by removing grouping symbols and combining like terms.2{9y2 + 4[7y2 - (y + z2)]}
A. 74y2 - 2y + 2z2
B. 46y2 - 4y - 4z2
C. 66y2 - 8y
D. 74y2 - 8y - 8z2
Answer: D
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Find each product.(10a + 7c)(10a - 7c)
A. 10a2 - 7c2 B. 100a2 + 140ac - 49c2 C. 100a2 - 49c2 D. 100a2 - 140ac - 49c2
Assume that the given mutual fund investment earns monthly returns that are reinvested and subsequently earn at the same rate. Find the beginning value of the investment, first monthly return, or effective annual rate of return as indicated. 
Find the first monthly return.
A. $103.84 B. $1038.37 C. $4614.96 D. $4718.80
The percentage change in earnings before interest and taxes (EBIT) associated with a given percentage change in sales is known as the degree of _____ leverage.
A. financial B. total C. operating D. combined E. equity
Find a solution for the equation. Assume that all angles are acute angles.sec ? = csc(? + 46°)
A. 68° B. 23° C. 67° D. 22°