Hey there! :)
5n(3n - n + 8)
Simplify.
(5n × 3n) + (5n × -n) + (5n × 8)
Simplify.
(15n²) + (-5n²) + (40n)
Remove parenthesis
**Remember : a negative times a positive is always a negative, a positive times a positive is a positive, and a negative times a negative is a positive**
15n² - 5n² + 40n
Combine like terms.
(15n² - 5n²) + 40n
Simplify.
10n² + 40n → final answer :)
~Hope I helped!~
Answer:
206.17
Key(s):

Substitute <em>d</em> for the actual diameter, 7.5, and <em>h</em> for the height, which is 5.
Step-by-step explanation:
≈ 206.17(2 DP)
Answer:
x = 5
Step-by-step explanation:
8x - 6x + 1 = 11
Add 6x to each side (because the 6 is negative)
8x + 1 = 11 - 6x
Subtract 1 from each side (because the 1 is positive)
8x = 10 - 6x
Subtract 6x from 8x
2x = 10
Divide by 2
x = 5
Answer:
Yes, they will have enough.
Step-by-step explanation:
1. $499.00 + 7% = $533.93
2. $225 x 2 = $550
3. $550 - $533.93 = $16.07 left to spend