(Please can I get some help with this?) An airplane ascends at an angle of elevation 22 for a ground distance of 7850 feet. What height does the plain gain during this ascent?

If angle 2=3x +1 and angle 3=2x +4what is angle 2

Can someone tell me if this is perpendicular? !

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.