Identify the explanatory and response variables in the following situation:

there is a strong positive correlation between latitude above the equator and number of hours of daylight on june 21.

a. explanatory: latitude
response: average temperature
b. explanatory: daylight hours
response: latitude
c. explanatory: time of year
response: daylight hours
d. explanatory: latitude
response: daylight hours

C. Explanatory: Time of year
Response: Daylight hours

June 21 is the summer solstice where the amount of daylight in the northern hemisphere is 12 hours 8 minutes.

This question is basically asking "what is $7.25 times 30?"

We can break the $7.25 down into 7 dollars and 25 cents, and then multiply each by 30...
the 7 dollars × 30 = 210 dollars, and
the 25 cents × 30 = 750 cents = 7.50

210 + 7.50 = $217.50

You could also do decimal multiplication like this:



You just multiply like a normal number, but line up the decimal points and add in zeroes as a placeholder for the 30 past the decimal point. I left out the lines of multiplying the first three zeroes because it is fairly obvious...Once you have your result you put your decimal point 4 places from the right because it should reflect the 2 from the 30.00 plus the 2 from the 7.25.