The step function f(x) is graphed.

What is the value of f(0)?

a. 0
b. -1
c. -2
d. 1

Solve for x, y, and z. show all steps.

Tiffany drives 285,120 feet before lunch and 628,320 feet after lunch. about how many kilometers does she drive all together

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.