A text message plan costs $4 per month plus $0.45 per text. Find the monthly cost for x text messages.

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that

Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.