David W. answered • 05/15/19
Tutor
4.7
(90)
Experienced Prof
a1 = 4*21 = 8
a2 = 4*22 = 16
a3 = 4*23 = 32
a4 = 4*24 = 64
2 Answers By Expert Tutors
Mark M. answered • 05/15/19
Tutor
5.0
(278)
Mathematics Teacher - NCLB Highly Qualified
a1 = 4(2)1
a2 = 4(2)2
a3 = 4(2)3
a4 = 4(2)4
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