The dollar value, V(t), of a certain car model that is t years old is given by the following exponential function: V(t)=21,900(0.90)^t A. $8049
B. $2190
C. $6185
D. $3437

Right ∆abc has coordinates a(-7, 3), b( -7, 10), and c(-1, 3). the triangle is reflected over the x - axis and then reflected again over the y - axis to create ∆a'b'c'. which are the coordinates of vertex a'?