Answer:
106
Step-by-step explanation:
this question represents an arithmetic sequence problem where you can use this formula: a(n) = a(1) + d(n-1) where 'n' is value you're solving for, a(1) is the initial value, and 'd' is the common difference
a(20) = 49 + 3(20-1)
= 49 + 3(19)
= 49 + 57
= 106
$28.50
21 ÷ 14 = 1.5
19 · 1.5 = 28.50
Hope this helps!!
I believe the answer could be c
½a - 4 = ? ( a - ?)
1a - 8 = -7a ( a - ?)
= ( a- 7a)
= ( -6a)
Answer:2,460
Just use a calculator
820x3=2,460