Add the expressions 4 minus two-thirds b + one-fourth a and One-half a + one-sixth b minus 7. What is the simplified sum? Negative one-sixth a + StartFraction 5 over 12 EndFraction b minus 3
Three-fourths a minus one-half b minus 3
Three-fourths a + StartFraction 5 over 6 EndFraction b minus 3
StartFraction 5 over 12 EndFraction a minus StartFraction 1 over 6 EndFraction b minus 3

It is B) 3/4a-1/2b-3

step-by-step explanation:

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: