Answer:

Step-by-step explanation:

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Answer:
1) $53.50
2)$85.10
3) $57.60
4)1.5
4) $2511.25
Step-by-step explanation:
for 1,2,3,5 take the original amount and the percentages to set up something like this
$50X1.07
which gives you the entire answer in a simple step
Answer: y = -0.2x + 1
Step-by-step explanation: Find the y intercept (b) and then find the slope (m) and use the equation y = mx + b.
-6x + 3 + x - 7...when ur adding expressions such as this, and there is a plus sign in between them, the parenthesis are not needed.
we now combine like terms...
-6x + x = -5x
3 - 7 = -4
and we are left with : -5x - 4 <==
It will take him 120 mins as he runs 8 minute miles