I think the inequality is 55,000>=40x+5,000 while x<=1,250 i have the same test Hmm i think its this 55,000 >= 40x+5,000 because it needs atleast 55,000 Which explains 55,000>= second receives 55 per race but spend 15 race in other terms 55x-15x= 40 x So 55,000>=40x third 10,000 in donations sponsers a 5,000 race 10,000-5,000=5,000 so 55,000>=40x+5,000 Also to find x 55,000>=40x+5,000 subtract 5,000 50,000>=40x now divide by 40 50,000/40>=x X<= 1,250
this is an isosceles triangle, so the angle y is the same as the angle touching the 112°. So y+112=180. subtract 112 on both sides and you get 68° for y.