What is the determinant of A= -2,2,-5,4,-1,-2,1,3,-5
–74 –51 51 69

Easy points boii. read it. ya. fresh

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

What ia the sum if the first 7 terms of the geometric series