How can you use similar triangles to solve real-world problems

Simplify square root of 81a^5b

A thermometer is guaranteed to give a temperature no more than 12 degree Fahrenheit from the actual temperature. If the thermometer reads 28 degree Fahrenheit, write and solve an equation to find the maximum and minimum temperatures it could be.

I don't really understand 1 step equations ... can anyone explain with an example?

Evaluate e/4+2f-3 when e=12 and f=1/2

Solve each equation. b - (-1.5) = - 9

Work out the sum of 13/15 and 3/10 . Give your answer in its simplest form.

Describe how to transform the graph of f into the graph of g. f (x) = square root of quantity x minus nine. and g (x) = square root of quantity x plus five.

A satrellite moves at a speed of 27,000 kilometers per hour. Write four numbers that could be the actual speed of the satellite?

Say 135,791,357.91 in words

Compare the two functions give. explain which function has the greater rate of change