Tracey paid $170 for an item that was originally priced at $250. what percent of the original price did tracey pay?

Step-by-step explanation:

Tracy paid 68 percent

triangle abc is reflected on the line x=-6.5 then reflected again on the x axis

step-by-step explanation:

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents