What is the value of -2 1/4 - 3 4/5
a. -5 13/20
b. -6 1/20
c. -1 3/20
d. -1 11/20
what is the answer here?

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

What dimensions can créate more than one triangle ?

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°