8) A car wash had to make their soap last 9 days. If they only have one-ninth of a gallon of soap, how much should they use each day so it lasts 9 days?

9/81

Step-by-step explanation:

Because 1/9 is all they have so they need to reduce usage by nine so divide by nine It probably wrong tho srry :(

2/81

Step-by-step explanation:

it says that 1/9 gallon has to be used over 9 days, so you would divide 1/9 by 9, which is basically multiplying 1/9 and 1/9, because you flip the second fraction around when dividing. 1/9 x 1/9 is 2/81, and it is already in simplest form, therefore the answer is 2/81 of a gallon. hope this helped

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: