The lid of a cooler is shaped like a rectangle with a width of 4x-7 inches and an area of 16x2-49 square inches. Which of the following expressions could represent the length of the cooler lid? A: 4x - 49 inches

B: 4x+7 inches

C: 8x+7 inches

D: 4x-7 inches

plz only answer no random stuf

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

What is the explicit rule for the sequence in simplified form? −1,−4,−7,−10,−13… an=4−5n an=−4−3n an=2−3n an=−6−5n