Answer:
1. 81.60
2. 8
Step-by-step explanation:
[tex]y=ab^x[/tex]
[tex]y=(2)(2.1)^5\\y=(2)(40.8)\\y=81.60[/tex]
---------------------------------------
[tex]y=ab^x[/tex]
Solve for a; divide by b^x
[tex]\frac{y}{b^x}=a[/tex]
[tex]a=\frac{5000}{(5)^4}\\a=\frac{5000}{625}\\ a=8[/tex]
