Solve for x to the nearest 10th 1349= 8700(0.945)^{x-4} -551

Need same math paper but the back now i hope your able to read it cleary i need with hw

The bolo cavern outside of vandalia is 421 ft below sea level. a little more than75 miles away. mt owens is 7295 feet above sea level. what is the difference in elevation between the bolo cavern and mt owens?

Y=21.95x+10 y=22.45x solve by substitution