Meryl spends a total of $68.82 for 2 pairs of sneakers with the same cost. the sales tax is $5.32. meryl also used a coupon for $3.00 off her purchase. how much does each pair of sneakers cost?

$38.57

Step-by-step explanation:

$68.82 + $3.00 = $71.82

$71.82 + $5.32 = $77.14

$77.14 / 2 = $38.57

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

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: