Kurt and his little sister are saving money to buy a joint birthday present for their mother. kurt already has $5 saved and plans to save $10 per week from his allowance. his sister has $20 saved so far and will save $5 per week from hers. the two siblings will soon have saved the same amount towards their mother's gift. how long will that take?

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

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?