Although five of John's answers were incorrect, 90% of his answers were correct. How many questions did John answer in all?

John answered 50 questions.

Step-by-step explanation:

Although five of John's answers were incorrect, 90% of his answers were correct.

This means that 5 is 100 - 90% = 10% of the total number of questions, n. So

John answered 50 questions.

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

if she was to only spend a dollar she can get 1lb

step-by-step explanation: