Factor completely.42 - 11x - 3x2
A. (6 + x)(7 + 3x)
B. (6 + x)(7 - 3x)
C. (6 - x)(7 + 3x)
D. (6 - x)(7 - 3x)
Answer: B
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Solve the problem.To the nearest dollar, the average tuition at a public four-year college was 
the year Jane enrolled there and 
when her sister entered college 3 years later. Find the average yearly increase in tuition from the year Jane began college to when her sister began (to the nearest dollar per year).
A. tuition increased $68 per year B. tuition decreased $68 per year C. tuition increased $85 per year D. tuition increased $79 per year
Solve the problem.Pat withdrew $495 from an ATM. If the ATM gives $100, $20, and $5 bills such that the total number of bills is the least, then how many of each type of bill did Pat get?
A. 4 $100-bills, 4 $20-bills, and 3 $5-bills B. 3 $100-bills, 9 $20-bills, and 3 $5-bills C. 5 $100-bills, zero $20-bills, and 3 $5-bills D. 4 $100-bills, 3 $20-bills, and 7 $5-bills
Find the vertex, focus, and directrix of the parabola.- 
x2 = y
A. Vertex: V(0, 0); focus: F(0, -10); directrix: y = 10 B. Vertex: V(0, 0); focus: F(-20, 0); directrix: x = 10 C. Vertex: V(0, 0); focus: F(0, 10); directrix: y = -10 D. Vertex: V(0, 0); focus: F(0, -10); directrix: y = -10
Find the absolute value.
A. 0
B. 
C. - 
D. 