Shawn the builder estimated that it would cost $12,000 to build a new conservatory. In fact it cost $13,200 What was the percentage error?

Solution,

Measured value= $ 13200

True value = $ 1200

Now,

Percentage error:

Hope this helps...

Good luck on your assignment..

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

i would say b) is your answer

sorry if im wrong

step-by-step explanation: