Answer:65.6
Step-by-step explanation:
So $0.25 per yard
16.4/$0.25=65.6
Scientific notation can be scary but it really is simple
the exponent after the 10 is how many places you move the decimal. If it is positive you move it right, if it negative you move it left
2 x 10^2 means you move the decimal place right twice to make 200
4 x 10^-3 means you move the decimal place left three times to make .004
The question is asking you to multiply 900000 and .0000006
Break the number apart into hundreds, tens, ones, etc. and add the quantities together. Here is an example:
<em>To write 256 in expanded form, break it apart. There is 200, 50, and 6 in 250. Now, add them together. 200 + 50 + 6 = 256</em>
The answer is the D ( the last one)
The train is going 90 mph.
This one is easy to explain, if you have 90 miles travelled in one hour of time, then you have 90 mi/1 hour, or 90 mph.
