How do i write this without exponents?
(4x)^2

the 2 is an exponent! so it would be (4x) raised to the !

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Which number line correctly shows 0.8 + 0.3?

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap