Evaluate the expression for the given replacement values.x2 + y2
x = 6, y = -7
A. 1764
B. 84
C. 26
D. 85
Answer: D
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Solve.A certain store has a fax machine available for use by its customers. The store charges $1.60 to send the first page and $0.50 for each subsequent page. Use an inequality to find the maximum number of pages that can be faxed for $5.10
A. at most 8 pages B. at most 10 pages C. at most 3 pages D. at most 39 pages
Solve the problem.After being struck with a hammer, a gong vibrates 21 vibrations in the first second and in each second thereafter makes 
as many vibrations as in the previous second. Find how many vibrations the gong makes before it stops vibrating.
A. 84 vibrations B. 94 vibrations C. 23 vibrations D. 28 vibrations
Perform the indicated operation.(3x)3
A. 3x3 B. 27x C. 9x3 D. 27x3
Graph the linear function.f(x) = - 
x - 9 
A. 
B. 
C. 
D. 