Translate using numbers and symbols.eight times the sum of x and two
A. 8 ? x ? 2
B. 8 ? x + 2
C. 8(x + 2)
D. (8 + x) ? 2
Answer: C
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Factor out the greatest common factor from the polynomial. Use a positive coefficient on the GCF.w - z
A. 0(w - z) B. 1(w - z) C. 1(w + z) D. w(1 - z)
Solve the problem.The changes in retail sales (in billions of dollars) of hand-held computer games in Country X from one year to the next are given in the following table.
(i) If there were $8.3 billion in sales in 1998, what were the sales during 2005?(ii) During which period(s) were the retail sales increasing?(iii) During which period(s) were the retail sales decreasing?
A. (i) 23.3 billion; (ii) From 2001 to 2005; (iii) From 1999 to 2002 B. (i) 23.3 billion; (ii) From 2002 to 2005; (iii) From 1999 to 2001 C. (i) $11.4 billion; (ii) From 2001 to 2005; (iii) From 1999 to 2002 D. (i) $11.4 billion; (ii) From 2002 to 2005; (iii) From 1999 to 2001
Solve.A college student earned $7300 during summer vacation working as a waiter in a popular restaurant. The student invested part of the money at 
and the rest at 
If the student received a total of $538 in interest at the end of the year, how much was invested at 
A. $2700 B. $4600 C. $1042 D. $3650
Factor, if possible.15 + 8z - 16z2
A. (4z - 3)(4 z - 5) B. (4z + 3)(4 z - 5) C. -(4z + 3)(4 z - 5) D. -(4z - 3)(4 z - 5)