When a car is first observed it has a speed of 20 ms-1. after a time of 10 S it is observed that the speed is 50 MS-1

Which graph represents the following piecewise defined function?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Josie buys a pair of boots that retail for $52.00 dollars, however they are currently on sale for 25% off how much does josie pay for the boots if there is also a 6% sales tax on them