Which is an equation in point-slope form for the line that passes through the points (−1,4) and (3,−4) ? pls me

a. y+4=2(x−3)

b. y−4=2(x+3)

c. y−3=−2(x+4)

d. y+4=−2(x−3)

Consider circle c with angle acb measuring 3/4 radians.if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.

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.

Pls the last one and it has to be like number 6