Answer:
-0.7
Step-by-step explanation:
First do 3.2-1.8= 1.4. So now we know that -2n=1.4. Next you solve for n to get the answer of -0.7 with your answer of the third option.
1st we write out 'twice a number z'.2zNow we divide 8 by 2z and the answer is:8 / 2z
Answer:
This is a geometric sequence since there is a common ratio between each term. In this case, multiplying the previous term in the sequence by 2 gives the next term.
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❖ 20% as as a fraction in lowest terms is 
Percents are out of 100% so write 20% out of 100% as a fraction:

Both the numerator and denominator can be divided by 20 so once divided, you get 
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