Mario and his three friends attend a professional football game. After parking ,tickets and food $240 total. Are you tells his friends that he got a better deal last week ping only $50 per person. How much better of a deal did Mario get last week.

c

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:

step-by-step explanation:

6

the parabola that is right side up (shaped like a u, not ∩)

step-by-step explanation:

see above. no graph provided so you will need to use the explanation to determine the answer.