First get all the like terms on the same side and combine like terms
4x+2x+2=3x-7
4x+2x-3x=-2-7
3x=-9
Simplify
X=-3
The answer is <span>49x2 _ 84x + 36
</span>
(7x - 6)² is the square of the difference. The general formula would be:
(a - b)² = a² - 2ab + b²
In our expression (7x - 6)², a would be 7x and b would be 6:
(7x - 6)² = (7x)² - 2 · 7x · 6 + 6²
= 7² · x² - 84x + 36
= 49x² - 84x + 36
The expression 18 - 0.25(18) can be used to find the new price of pillow.
Step-by-step explanation:
Given,
Cost of pillow = $18
Mark down = 25% = 
To find the amount of mark down, we will multiply it with cost of pillow;
Amount of Mark down = 0.25*18
The new price of pillow can be determined by subtracting amount of mark down from the original cost of pillow.
New price = Original Cost of pillow - Amount of mark down
New price = 18 - 0.25(18)
The expression 18 - 0.25(18) can be used to find the new price of pillow.
Keywords: percentage, subtraction
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Answer: The answer for this question would be answer choice B "(0, 10) and (1, 15)". (0, 10) represents her starting amount and week saved, and (1, 15) would represent her saving for one week and having $15 total.
Hope this helps!