Translate the verbal expression into an equation and solve for x.-45 is the product of 5 and what number?
A. -45 = 5x; x = -9
B. -45 = 5 + x; x = 50
C. -45 = 5 + x; x = -50
D. -45 = -9x; x = 5
Answer: A
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Decide whether the statement is true or false.A base five numeral is divisible by 5 if and only if its ones digit is 0.
A. True B. False
Decide what values of the variable cannot possibly be solutions for the equation.
- 
= 10
A. -3, 8
B. - 
, 
C. -8, 3
D. - 
, 
Solve the problem.A $98,000 trust is to be invested in bonds paying 7%, CDs paying 6%, and mortgages paying 10%. The bond and CD investment must equal the mortgage investment. To earn an $8020 annual income from the investments, how much should the bank invest in bonds?
A. $18,000 B. $49,000 C. $31,000 D. $16,000
If y varies directly as x, write a general formula to describe the variation.y = 6 when x = 4
A. y = 2x
B. y = 
x
C. y = x + 2
D. y = 
x