Use "intersect" on a graphing calculator to solve the equation.10x + 7 = 57
A. 44
B. 1
C. 5
D. 40
Answer: C
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Use the table of record trout lengths at Yosemite Lake to answer the question. To find the average, add up the values you are interested in and then divide the sum by the number of values. Round your answer to the nearest tenth. 
Find the average length of record trout caught during the weekend.
A. 13.0 in. B. 10.2 in. C. 3.7 in. D. 25.9 in.
Solve the problem.Chris and his friends went to the movies. They purchased 6 adult tickets, 2 student tickets and 4 child tickets. How much did they spend on movie tickets?
A. $72 B. $74 C. $80 D. $60
Use a graphing utility to graph the function over the indicated interval and approximate any local maxima and local minima. If necessary, round answers to two decimal places.f(x) = x3 - 3x2 + 1; (-5, 5)
A. local maximum at (0, 1) local minimum at (2, -3) B. local minimum at (2, -3) C. local minimum at (0, 1) local maximum at (2, -3) D. none
Solve the system of equations graphically. x = y - 23x = 2y
A. (6, 4) B. (-4, 2) C. (0, 0) D. (4, 6)