Grades 1 through 6 at Eastwood Elementary School raised $5,492 towards repairs for the gymnasium floor. How much did each grade raise if they each collected about the same amount of money? Choose the best estimate.

A. About $1,100
B. About $900
C. About $550
D. About $500

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x

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: