Since we know they are complementary (two angles that add to 90) that means we can set up an equation (2x+5)+(8x-5)=90 now it’s a algebra problem 2x+8x=90 since we subtracted the 5’s now you combine like terms and it’s 10x=90 and divide each side by 10 now you have x=9 so let’s try and see if it works 2x(9)+5=(23) + 8x(9)-5=(67) 23+67=90 ✔️ ANSWER: m
