The coach for the cheerleaders is shopping for uniforms for eight new
cheerleaders.
Sports Discount is offering a 20%
discount on each uniform. Each
uniform is priced at $68.00. A 7%
sales tax will be applied to the
discounted price.
The same uniforms are also available
on Cheerleading for Less web site for
$56.50. The tax on the uniforms is
8.5% plus a total shipping fee of
$29.99 for the entire order.
What is the difference in the total
costs of the 8 new uniforms between
the two stores?

the answer is 37

step-by-step explanation:

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: