Ateenager pulls a rope to the left with a force of 12 n. a child pulls on the other end of the rope to the right with a force of 7 n. the child's firend adds a force of 8 n, also pulling to the right. what will happen?
a. the net force will be 3 n to the right
b. the net force will be 15 n to the left
c. the net force will be 12 n to the right
d. the net force will be 27 n to the left

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.