Solve the problem.In order to receive a B in a course, it is necessary to get an average of 80% correct on two one-hour exams of 100 points each, on one midterm exam of 200 points, and on one final exam of 500 points. If a student scores 90, and 85 on the one-hour exams, and 148 on the midterm exam, what is the minimum score on the final exam that the person can get and still earn a B?
A. 307
B. 442
C. 577
D. 397
Answer: D
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Decide whether the given functions are inverses.f = {(-9, 15), (6, 0), (0, 22), (15, -9)}g = {(15, -9), (0, 6), (22, 0), (-9, 15)}
A. No B. Yes
Solve.A plane is cruising at 963 kilometers per hour. Convert this to miles per hour. Round to the nearest whole number.
A. 626 mph B. 1550 mph C. 1050 mph D. 597 mph
Catalina works part-time at a bakery earning $7.50 an hour. In the last five days, her time card shows that she worked 3.3, 2.9, 4.0, 3.5, and 2.1 hours. What is her gross pay for the five days?
A. $118.50 B. $119.50 C. $122.50 D. $125.50
Solve the problem.This chart shows the number of meals served in a restaurant during each of the past 4 months. Assume that the information in the chart defines a function with the name g. Find g(March).
A. 1057 B. 1041 C. 1000 D. 1062