Which equation is represented by the bar model shown

D

Step-by-step explanation:

We can see that each X corresponds to a 6, individually. From that, we can assume that the sum of the three Xs is also equal to the sum of three 6s, thus, x+x+x=6+6+6 is viable.

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

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: