Solve for x.

8/15
1 7/8
4 4/5

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?

Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?

Quadrilateral abcd is a parallelogram with diagonals that intersect at point e. which of the following statements is true?