david and amanda are trying to figure out how long they can live off their $12,350 savings if they spend $240 each month. they have each created an equation.

david's equation amanda's equation
y = 12,350 - (240x) y = 12,350 + (240x)

which person has the correct equation to model this linear relationship? (4 points)

a) amanda's equation is correct, because their spending will be multiplied by the number of months and then added to their savings.

b) amanda's equation is incorrect, because their spending will increase the amount of their savings.

c) david's equation is correct, because their spending will be multiplied by the number of months and then subtracted from their savings.

d) david's equation is incorrect, because their spending should be a fixed amount and should not be multiplied.

An electronics manufacturer wants to know if customers would be interested in a detachable keyboard for their tables and if so, what the most important features would be. the manufacturer partners with an electronics store to include copies of the survey with every purchase at that store for one week. which of the following best explains why this random sample is unlikely to be a good representative sample of tablet owners' preferences for a detachable keyboard? a) one week is likely not enough time to get a large enough sample. b) most people won't bother to send in the survey, which is likely to skew the results c) there is no way to verify whether the responders to the survey actually own a tablet d) the survey is biased because it was conducted through an electronics store, not the general population

Brent wants to know what is 5 x 1/2

How do you find the area of a triangle