how do i solve, i got 3.7 and -3.7 neither worked

(1 point) The altitude (i.e., height) of a triangle is increasing at a rate of 2.5 cm/minute while the area of the triangle is increasing at a rate of 2 square cm/minute. At what rate is the base of the triangle changing when the altitude is 11.5 centimeters and the area is 92 square centimeters? The base is changing at cm/min