Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log7 
A. 
log7 x + 
log7 y - 
B. 
log7 x - 
log7 y + 
C. 
(log7 x2 + log7 y - 2)
D. 
(log7 x2y - log7 49)
Answer: A
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Solve the equation graphically, numerically, or symbolically. If appropriate, round the solution to hundredths. ?x? = -15
A. -15 B. No solution C. 0.07 D. 15
Find the difference. Simplify the result.
- 
A. 
B. 
C. 
D. 
Determine between which two consecutive whole numbers each square root lies.
A. 7 and 8 B. 4 and 5 C. 5 and 6 D. 6 and 7
Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.There were 420 people at a play. The admission price was $2 for adults and 
for children. The admission receipts were $600. How many adults and how many children attended?
A. 120 adults and 300 children B. 180 adults and 240 children C. 150 adults and 270 children D. 240 adults and 180 children