Solve the equation.4x = 16
A. 3
B. 1
C. 2
D. -2
Answer: C
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Solve the problem.It took three assembly-line workers 5.13 seconds, 6.489 seconds, and 5.6 seconds to assemble a product. How many seconds in all did they work?
A. 11.619 sec B. 10.73 sec C. 6.959 sec D. 17.219 sec
Solve the equation.log x + log (x -1) = log 90
A. x = -9
B. x = 10, x = -9
C. x = 
D. x = 10
Solve the problem.Suppose that y = 
can be used to calculate the number of years y for x percent of a population of 
sparrows to die. Approximate the percentage (to the nearest whole per cent) of 
sparrows that died after 
A. 99% B. 90% C. 92% D. 88%
Add or subtract as indicated. Express the answer as a single polynomial in standard form.(14x2 + 4x - 13) + (8x + 13)
A. 14x2 + 12x - 26 B. 14x2 + 4x + 26 C. 26x3 D. 14x2 + 12x