Number sense how is dividing 250 by50 the same as dividing 2,500 by 500

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax

Jonathan puts $400 in a bank account. each year the account earns 6% simple interest. how much interest will be earned in 5 years?