35
Step-by-step explanation:
x+55 + 90=180
x= 180-145
x=35
Area of shaded region = 2(4*4)=2*16=32 in squared
hope helped
3/5 = 0.3 * x
3/5 is 30% of x - This is how they match up from the word problem to a number sentence
So to solve it...
3/5 = 0.3x
x = 3/5 ÷ 0.3 = 2