The value of a motor bike depreciates by 20% each year. brian says "after 2 years, the value of the motor bike will have reduces by 40%". he is wrong. explain why

Line cd passes through points c(1, 3) and d(4, –3). if the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b? –5 –2 1 5

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.

Could someone me with this question i’ve been stuck on it for 20 minutes