Find the indicated term of the arithmetic sequence.Given an arithmetic sequence with a1 = -9 and a8 = 19, find a15.
A. 54
B. 85
C. 112
D. 47
Answer: D
Mathematics
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Provide an appropriate response.Perform the multiplication and express in scientific notation: (8.5 × 107)(4 × 10-3)
A. 3.4 × 10-10 B. 34 × 104 C. 3.4 × 105 D. 340,000
Mathematics
Solve.When making a telephone call using a calling card, a call lasting 6 minutes cost $1.10. A call lasting 15 minutes cost $2.00. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that relates the cost of a making a call, y, to the time x.
A. y = 0.1x - 13
B. y = 0.1x + 0.5
C. y = 10x - 
D. y = -0.1x + 1.7
Mathematics
Use prime factorization to find the GCF. If the GCF is 1, write relatively prime.108 and 270
A. 18 B. 2 C. 54 D. 27
Mathematics
Solve for the variable.
= 1 - 3y
A. y = - 
B. y = 
C. y = 
D. y = 
Mathematics