Deposit $400 into an account that pays simple interest at rate of 4% per year how much interest will she be paid in the first 6 years

Find percent notation for 0.008 0.008=

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

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