Help please, i'll give brainliest

Write 5 numbers that round to 740 when rounded to the nearest 10

What is (28 + 7 + 6 + 3) x 1/2 show your work

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.