Solve.
= 5
A. 25
B. -25
C. 10
D. 5
Answer: A
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Solve.Madison, Lionel, and Maria enter a 48.7-mile bicycle team relay race. They complete the course in 2.44 hours. What was their average speed on the course? (Round to the nearest tenth.)
A. 5.0 mi/hr B. 0.5 mi/hr C. 200.0 mi/hr D. 20.0 mi/hr
Divide.
A. -8.525 B. -85.25 C. -0.08525 D. -0.8525
Simplify: -11(a + 3)
A) 11a – 8 B) -11a – 33 C) -8a – 33 D) -11a – 8 E) -8a + 3
Solve the problem.A consumer group in one city compares the costs of goods and services in that city over various years, and uses 1970 as a base. The same goods and services that cost $100 in 1970 cost $37 in 1941. Assume the exponential-decay model in which t is the number of years before 1970. Estimate what the same goods and services cost in 1900. (You will need to find the value of k)
A. $11 B. $1080 C. $8 D. $9