Is the work shown below correct? Explain your answer.
(11 + 21 ) - (3 - 101)
= 11 + 21 - 3 - 10;
= (11 - 3) + (21 - 101)
= 8 - 81

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Which expression is rational? 6. , square root two, square root 14, square root 49

What does the sign of the slope tell you about a line?