Answer:
26
Step-by-step explanation:
Complementary angles equal 90 deg.
90-64=26
38.98 because you get 15.59 and divide that by 40% you get 38.975 but since you're speaking in money it rounds to 38.98
Y = x-7
+7 +7
x = y+7
- - - -
y=-2x+8
y=-2(y+7) +8
y= -2y - 14 +8
+2y +2y
3y = -6
/3 /3
y = -2
- - - -
x = y+ 7
x = -2 +7
x = 5
(5, -2)