The fastest pizza box folder can assemble 8 pizza boxes in 21 seconds. At this rate, how long would it take to assemble 20 pizza boxes?

52.5 seconds.

Step-by-step explanation:

21/8 is the ratio of how long it takes the person to assemble one box. which is 2.625 times that by the pizza boxes and you got the answer

10.5

Step-by-step explanation:

      21+21=42

      21/8=2.625

      2.625×4=10.5

        MAKE ME BrAiNlIeSt PLS

         IF WRONG SORRY

x = -2

y = 848

step-by-step explanation:

plug in the numbers

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation: