Does anyone know a website/app that you can put in a triangle with its angles to figure out the sin, cos and tan? Please help it’s due in a couple of minutes

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.

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?

Find │7│. a. 1 over 7 b. –7 c. 7 asap i always mark brailiest who me so