In which number is the value of the digit 9 one tenth the value of the digit 9 in 3.974?

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.

Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol