kathy buys a water heater with a 40% off sale she pays 480$ what was the original price, someone please help

Step-by-step explanation:

$480 is 40% off the original price

=> $480 is 60% of the original price

Hence the original price is $480 * (100/60) = $800.

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.