Anumber is being written in scientific notation. the student moves the decimal point to the left 3 places and

a. multiplies by 10-3
b. multiplies by 3
c. multiplies by 10
d. multiplies by 103

i dont get this question either.

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)