M + t + w = 19
t = 2m
w = 2m - 6

now we sub
m + (2m) + (2m - 6) = 19...combine like terms
5m - 6 = 19
5m = 19 + 6
5m = 25
m = 25/5
m = 5 <== she sold 5 books on Monday

t = 2m......t = 2(5)...t = 10 <== she sold 10 books on Tuesday
w = 2m - 6....w = 2(5) - 6....w = 10 - 6...w = 4 <== she sold 4 books on Wednesday.

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2 years ago

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Jonah is purchasing a car that is on sale for 15% off. He knows the function that represents the sale price of his car is c(p) =

svetoff [14.1K]

I agree that the answer is letter B :)

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2 years ago

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Meat costs $8.00 per pound at a store. What is the slope?____ What is the y-intercept?___

Meat costs $8.00 per pound at a store. What is the slope?__ What is the y-intercept?_