Find an equation of variation for the given situation.p varies directly as q, and p = 1 when q = 
.
A. p = 17q
B. p = 18q
C. p = 
q
D. p = 16q
Answer: A
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Sketch the line.4y - 16x = -28
A. 
B. 
C. 
D. 
Solve and check.x + 7 = 20
A. x = 27 B. x = 12 C. x = 140 D. x = 13
Let U = {21, 22, 23, ..., 40}, A = {21, 22, 23, 24, 25}, 
and 
Use the roster method to write the following set.A'
A. A' = {26, 27, 28, . . . , 40} B. A' = {21, 22, 23, . . . , 40} C. A' = {26, 28, 30, . . . , 40} D. A' = {27, 29, 31, . . . , 39}
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