You order the hardcover book shown from a website that offers free shipping on orders of $25 or more. Question 1

Identify an inequality that represents how much more you must spend to get free shipping. Let x represent the cost of additional items.

19.76+x≥25

19.76−x≥25

19.76+x>25

25+x≥19.76

my answer is$ 12

step-by-step explanation:

because 15 -2=12

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5

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: