Use the unit rate of $2.09 per pound to find the cost of 8.5 pounds of grapes. [type your answer as a number and round to the nearest cent.] 8.5 pounds of grapes = $

Apossible wavelength for the color blue is 0.000000492 meter. which of the following is a reasonable estimate for this wavelength for the color blue? a. 5 × 10-6 m b. 5 × 107 m c. 5 × 10-7 m d. 5 × 106 m