-60x^3 + 480, that’s what I got
20 large candles because $4*20 candles=$80
2 small candles because $2.50*2=$5
$80+$5=$85
53% I believe I'm OK in math
Answer:
- 20 + 8i
Step-by-step explanation:
Noting that i² = - 1
Given
[(6i + 9) + (4i - 5)] × 2i ← evaluate the terms inside the square bracket
= ( 6i + 9 + 4i - 5 ) × 2i
= (10i + 4) × 2i ← multiply each term in the parenthesis by 2i
= 20i² + 8i
= 20(- 1) + 8i
= - 20 + 8i