Yesssss you got it right boy
The value of r so the line that passes through (-5,2) and (3,r) has a slope of -1/2 is -2
<u>Solution:</u>
Given that line is passing through point (-5, 2) and (3, r)
Slope of the line is 
Need to determine value of r.
Slope of a line passing through point
is given by following formula:
--- eqn 1

On substituting the given value in (1) we get

Hence the value of "r" is -2
Answer:
Step-by-step explanation:
Let the initial number be x
<u>Sold 1/3x, and now has:</u>
<u>Bought 84 more and now got 178:</u>
- 2/3x + 84 = 178
- 2/3x = 94
- x = 94 ÷ 2/3
- x = 94 × 3/2
- x = 141
Jessica had 141 records initially
5.013d + 12.3 = 15.302
5.013d = 15.302 - 12.3
5.013d = 3.002
d = 3.002 / 5.013
d = 0.599 (thats rounded) <==
The answer is -420 (negative four-hundred and twenty)