Answer:
0.75
Step-by-step explanation:
decrease by 25% means multiply by 75%
convert 75%to decimal
75/100=0.75
Some of the qeustion is cut out could you plz take another pic?
5/8 + 7/8 is 12/8
12/8 = 1 4/8
1 4/8 + 13 = 14 4/8
14 4/8 = 14 2/4 = 14 1/2
14 1/2
Answer:

Step-by-step explanation:
becauseby pytagorean theorem we get

16+81=c squared
97 =c squared
c=radical 97
After Applying Laws of Exponents we can write as 
<h3>What is law of exponents ?</h3>
The exponent of a number indicates how many times a number has been multiplied by itself. For instance, 34 indicates that we have multiplied 3 four times. Its full form is 3 3 3 3. Exponent is another name for a number's power. A whole number, fraction, negative number, or decimal are all acceptable.
<h3>How are powers of powers multiplied?</h3>
Exponents with distinct bases and the same powers can be multiplied by multiplying the bases and writing the power outside of the brackets.
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To know more about law of exponents visit :
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