Answer:
- 3x² + x + 5
Step-by-step explanation:
Given
(4x + 5) + (- 3x² - 3x) ← remove parenthesis
= 4x + 5 - 3x² - 3x ← collect like terms
= - 3x² + (4x - 3x) + 5
= - 3x² + x + 5
Answer:
$53.46
Step-by-step explanation:
If the meal was $43.45 and there is a sales tax of 7% then we can think of it as 100% of the meal plus 7% therefore 100%+7%=107%. Since 107% is equal to 1.07 in decimals the meal plus the sales tax is:
![43.45 \times 1.07 = 46.49](https://tex.z-dn.net/?f=43.45%20%5Ctimes%201.07%20%3D%2046.49)
Now the Jackson family is going to tip 15% on the meal and sales tax, meaning $46.49 + 15%. Similar to above 100% + 15% = 115% = 1.15. And so:
![46.49 \times 1.15 = 53.46](https://tex.z-dn.net/?f=46.49%20%5Ctimes%201.15%20%3D%2053.46)
{24+8}
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4
u can do the rest