Answer:
The first 2
Step-by-step explanation:
First expression = -4+30-3 =23
Second expression = 8(10+4)= 112.
The others would lead to a negative number.
Remember negative times negative = positive
Negative times negative times negative = negative

x=8
16-8=8

Use a calculator to find the square root of 8.
Answer:
60 minutes
Step-by-step explanation:
to find this, we will first determine how long it takes austin to run one mile.
18 miles / 180 minutes
1 mile / 10 minutes
it takes austin to run 10 minutes to run 1 mile
now, we will multiply the number of minutes it takes by 6 to find how long it takes austin to run 6 miles.
1 mile / 10 minutes
6 miles / 60 minutes
it takes austin 60 minutes to run 6 miles
Answer:
a = 1
Step-by-step explanation:
Original Equation:
-1 + 8 = 10 - 3a
Add 1 to both sides
8 = 11 - 3a
Subtract 11 from both sides
-3 = -3a
Divide both sides by -3
a = 1
Hope this helps :)
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A: 39 over 50000
b: 20003 over 10000