Pls explain so i can understand

"subtract them" he means subtract 100 by 0.151515 which will equal 99. so thats where he got 99 from. then 99 x 0.151515 will equal 15. Try dividing 15 by 99... did you get 0.151515...? so 15/99 in fraction form is also 5/33. to check if 0.151515 = 5/33 divide 5 by 33. anyway your final answer is 5/33

hope this cleared it up a bit, if not read it again carefully until you get it. :)

To find the x-intercept, make  y  equal to zero, and solve for  x. to find the y-intercept, make  x  equal to zero, and solve for  y.explanation: y=4x−2x-intercept0=4x−2add  2  to both sides of the equation.2=4xdivide both sides by  4.24=xsimplify.12=xswitch sides.x=12y-intercepty=4(0)−2y=−2