Acollection of 54 coins is worth $3.90. the collection contains only nickles and dimes let n represent the number of nickles and let d represent the number of dimes. how many of each type of coin are in the collection

Simplify the expression. -2/5(10+15m-20n)

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5