Which describes dependent events?
a. jeff rolls a number cube and then tosses a coin.
b. mark pulls a red marble out of a bad and then a blue marble.
c. sam pulls a red sock out of a drawer, puts it back, and pulls a white sock out.
d. wesley tosses a coin twice.

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.

Which is the focus of a parabola with equation y2=4x

Jim had 3,067.48 in his checking account he wrote a check to pay for two airplane tickets. his account now has 1,845.24.