Can someone help me with this ... which choice contains only values of x that make the inequality true ?

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)

Ms. green tells you that a right triangle has a hypotenuse if 13 and a leg of 5. she ask you to find the other leg of the triangle. what is you're answer?

Aliter of water contains about 3.35 x 10^25 molecules. a certain river discharges about 2.9x 10^8 l of water every second. about how many molecules does the river discharge every minute? write your answer in scientific notation