Olivia says that if you move a decimal to the left 3 times , the number will increase in value is that true or false

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30