Solve the problem by guessing and adjusting.Mitra created a mosaic design using square 4-by-4 cm white tiles and rectangular 
centimeter black tiles. She used twice as many white tiles as black tiles. The finished pattern was 2704 square centimeters in area. How many rectangular tiles did she use?
A. 52
B. 20
C. 104
D. 212
Answer: A
Mathematics
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Plot the zeros of the given polynomial on the number line together with the zeros of the first derivative.y = x2 + 6x + 5
A. 
B. 
C. 
D. 
Mathematics
Find the derivative of y with respect to x, t, or ?, as appropriate.y = ln 6x
A. 
B. - 
C. 
D. - 
Mathematics
Write the phrase as a variable expression. Use x to represent "a number."The product of -18 and the sum of a number and 30
A. -540x B. -18 + 30x C. -18x + 30 D. -18(x + 30)
Mathematics
Round the whole number to the given place.In 2005, a company spent $593,749,598 on television advertising. Round this amount to the nearest hundred-million.
A. $593,700,000 B. $593,800,000 C. $600,000,000 D. $500,000,000
Mathematics