Answer:
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trying to rank up
Explanation:
9. Start with 900 down cost. Cost increases by 5 each house. Cost is going UP
C = 900 + 5*b
Where C is cost and b is # of bird houses
Answer: 905,910,915,920,925,930,935
10.
Start with owing 500. if u pay BACK 15, you will owe 15 LESS. meaning:
X = 500 - 15*m
where x is amount owing and m is number of months
Answer: 485, 470, 455, 440, 425, 410, 395
11.
starting with 0, u simply add 10 to ur account each week
S = 10*w
where S is savings and w is # of weeks
Answer: 10,20,30,40,50,60,70
12.
Like question 11., you adding 10 but start with $25
S = 25 + 10w
Answer: 35,45,55,65,75,85,95