Hey there!
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ANSWER: 
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EXPLANATION:</h2>

To write as power, you will see how many times you multiply the number 10.

Since it was multiplied 7 times, you would write it like this.

Hope this helps!

1. y=6
2. y=-12
Step-by-step explanation:
<u>1) If y varies inversely as x, and y=3 as x = -2, find y for the x value of -1.</u>
It is given that
y varies inversely as x
IT will be written as:
y∝1/x
Removing the proportionality symbol
y=k/x
Given
y=3 , x=-2
Putting the values
3=k/-2
k=3*-2 = -6
The equation will be:
y=-6/x
So,
When x=-1

<u>2) If y varies directly as x, and y=15 as x=-3, find y for the x value of 4</u>
y is directly proportional to x
y∝x
y=kx
Given
y=15, x=-3
Putting the values

Hence,
1. y=6
2. y=-12
Keywords: Proportion, Variation
Learn more about proportion at:
#LearnwithBrainly
115°
A triangle is 180° so add the two degrees given and subtract that from 180; 180-(75+40)
180-155= 65. then a line is 180 degrees so you subtract 65 from 180 and get 115
Answer:
2528
Step-by-step explanation:
well three goes into 7 twice carry the one, three goes into 15, 5 times, three goes into 8 twice carry the 2, and then 3 goes into 24 eight times