Answer:
A
Step-by-step explanation:
x + y = 4a + 7
x - y = 2a + 5
In both equations, make x the subject of the formula
x = 4a + 7 - y equation 1
x = 2a + 5 + y equation 2
Subtract equation 2 from equation 1
2a + 2 -2y
= 2a + 2
35,000
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Answer:
The result in standard form is:

Step-by-step explanation:
Given the polynomials
subtracting 8t² + t from -5t+ 4t² – t.

Remove parenthese: (-a) = -a
i.e. - (8t² + t) = 8t² - t
so the expression becomes
grouping the like terms

Add similar elements: 4t² - 8t² = -4t²

Add similar elements: -5t - t - t = -7t

Therefore, the result in standard form is:

You had $9.29 for tax, in total you had to pay $164.28.
Search up heating curve chemistry: it should look somewhat like that lol :). But, the last interval should have a small slope, the middle interval a big slope, and the first interval: a medium slope.