The answer would be A because if the player starts on the 20 yard line and gains 9 yards, that would be 20+9= 29. Then it says the player loses 4 yards which would make it 29-4= 25 then it says the referee takes the penalty away which then makes it 29 again. If you do the math for A it comes out to be 29.
d = dimes
q = quarters
d+q = 38 coins
q=38-d
0.25q + 0.10d=6.95
0.25(38-d)+0.10d=6.95
9.5-0.25d+0.10d=6.95
-015d=-2.55
d=-2.55/-0.15 = 17
q=38-17 =21
21*0.25 =5.25
17*0.10 = 1.70
5.25+1.70 = 6.95
she had 21 quarters and 17 dimes
200/5=40
He can buy 40 pens!!
Hope this helps!!