Solve.BT&T charges $0.34 for the first minute and $0.25 for each additional minute for a long-distance call. How much will a 15 minute long-distance call cost?
A. $4.09
B. $5.10
C. $3.75
D. $3.84
Answer: D
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Find parametric equations for the tangent line to the curve with parametric equations x = 9t, y= 7t², z=4t³ at the point with t = 1. Select the correct answer.
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Find the composition. If f(x) = 2x2 - 4x and g(x) = -2x, find (g ? f)(x)
A. 8x2 - 4x B. 2x2 - 8 C. -4x2 + 8x D. -4x3 + 8x2
Write an algebraic equation and use it to solve the problem.Don James wants to invest $54,000 to earn $4700 per year. He can invest in 
bonds paying 
per year or in a Certificate of Deposit (CD) paying 
per year. How much money should be invested in each to realize exactly $4700 in interest per year?
A. $28,000 in B-rated bonds and $26,000 in a CD B. $29,000 in B-rated bonds and $25,000 in a CD C. $25,000 in B-rated bonds and $29,000 in a CD D. $26,000 in B-rated bonds and $28,000 in a CD
Perform the row operation(s) on the given augmented matrix.R1 = 
r1
A. 
B. 
C. 
D. 