Answer:

Step-by-step explanation:
⇒
÷
=
Answer:
Step-by-step explanation:
In exponents multiplication, if bases are same, add the powers

How many books has she read so far? She's been doing this for 7 months, so so far she's read:
7*3=21
how many does she still need to read?
30-21=9
so she needs to read 9 more books. With 3 books a month, this means:
9/3=3
so she needs to read 9 more books, which will take her 3 months!
Answer:
Glenn needs to stop shopping for laptops at retail stores and just use ebay
Step-by-step explanation:
it's cheaper
Power of 10, in mathematics, any of the whole-valued (integer) exponents of the number 10. A power of 10 is the number 10 multiplied by itself by the number of times indicated by the exponent. Thus, shown in long form, a power of 10 is the number 1 followed by n zeros, where n is the exponent and is greater than 0; for example, 106 is written 1,000,000. When n is less than 0, the power of 10 is the number 1 n places after the decimal point; for example, 10−2 is written 0.01. When n is equal to 0, the power of 10 is 1; that is, 100 = 1. (Answer)The table lists the powers of 10 from 1 to 100,000,000,000,000. Hope this helps