7. The table below shows the number of children, c, to each childcare worker, w. Based on the information in
the table, which of the following statements is not
correct? PLEASE HELP IM TAKING A TEST IM ONLY IN 6th GRADE AND GRADES ARE COMING NEXT WEEK I NEED AN A PLSS!!

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Me. i can't figure out this question. give an explanation too. .

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)