Trish runs 3 miles ever 50 mins. at this rate how many minutes did trish run if she ran 12 miles? 50,200,250,or 100?

7x+8y=-18, 4x-9y=-3 solve the system of equations

Consider circle c with angle acb measuring 3/4 radians.if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.

6x + 3y = -6 2x + y = -2 a. x = 0, y = -2 b. infinite solutions c. x = -1, y = 0 d. no solution