Tracy took a quiz containing 12 items. If she answered 5/6 of the items correctly, how many items did she answer correctly?

For each proportion find the unknown number x 1/5/8=×/15

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?

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)