I dont know how to do this please help

The length of the line segment ac is 8x-9 what is the value of x

Newtons second law says force(f) is equal to mass (m) times avceration (a) a scientist wamts to calculate the force of an objecy where the acceleration of gravity (g) is 9.8m/ s2 use the function to calculate the force of an object with a mass73( m) of 0.29 kilograms

If the figures below are similar give the scale factor of figure a to figure b