You treated yourself and a friend to sodas and snacks at a concert. the total was $16.75. you tipped 15%, and there was a sales tax of 6.5%. what was the total amount you paid?
a.$19.10

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

Pls! does anybody know a shortcut for answering these types of questions in the future?

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?