Hirons Air uses two measures of activity, flights and passengers, in the cost formulas in its budgets and performance reports. The cost formula for plane operating costs is $57,440 per month plus $2,962 per flight plus $15 per passenger. The company expected its activity in November to be 83 flights and 255 passengers, but the actual activity was 86 flights and 257 passengers. The actual cost for plane operating costs in November was $305,490. The spending variance for plane operating costs in November would be closest to

the answer would be c:   ax + b = ax + c

step-by-step explanation:

if the probability is 1/12, 75 people will receive a $25 gift card

step-by-step explanation:

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

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: