Walter bought a CD for $17, a pair of shoes for $30 and a pair of jeans for $25. The tax was 6%. Walter gives the cashier $80. How much change should be receive?

$3.68

Step-by-step explanation:

cost of CD = $17

cost of a pair of shoes = $30

cost of a pair of jeans = $25

Total cost of products bought = $17 + $30 + $25 = $72

Tax on products bought = 6%

= 6/100 x $72

= $4.32

New cost of products after tax =

$72 + $4.32

= $76.32

Money given to cashier = $80

change received = $80 - $76.32

= $3.68

18.8 cubic inches.

step-by-step explanation:

volume of a cone = πr²h

r = 1.5 inches

h = 8 inches

pi = 3.14

volume of our cone = × 3.14 × 1.5² × 8 = 18.84 square inches

or equals to 18.8 square inches rounded up to nearest tenth.

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: