B: More than 25% of the students chose football and tennis as their favorite sport to play.
Step-by-step explanation: You need to find the total, which is 50. Since it says more than 25 percent of the students chose football and tennis your answer will need to be more then 25 percent. You add football plus tennis (10+3=13). Now you set up your proportion- 50 as your whole/total, 13 as your part, and substitute you percent with a variable like (p), then 100. Cross multiply. I did a shortcut which replaces the Ice Ice Baby process, so multiply 13x100= 1300, then your product divide it by 50 ( total) 1300/50= 26. This makes the statement true.
If the equation is 4x+1/3=20, your answer would be x=59/12. - You would subtract 1/3 from each side. (1/3 - 1/3) (20-1/3) - Then your new equation would be 4x = 59/3 - You would divide 4 from each side (4/4) (59/3 / 4) - x = 59/12
-3x + 2 > 14.
x < -4