Answer: 296
Step-by-step explanation: explicit rule formula for an arithmetic sequence:
a_n = a_1 +(n-1)(d)
20-14= 6
d= 6
a_1 = 8
a_n = 8 + (n-1)(6)
= 8+6n-6
a_n= 6n+2
substitute to find answer:
a_49= 6(49) +2
= 294+2
=296
The answer should be $4333.33 I am bad at math though so I am probably wrong
6.2 you subtract the 0.7 from 6.9 because 0.7 of it is milk chocolate