In an isometric transformation, the preimage and image must not

a.

change size

b.

rotate

c.

preserve angle measures

d.

reflect across the -axis

There are a total sales of 2,000 dollars on monday on tuesday sales dropped 10% on wednesday sales dropped another 20% compared with tuesday from wednesday to thursday sales increases by an equal amount to 25% of monday total sales what is the net change in dollars on total sales from monday to tuesday