Need as sound as possible this is due in 1hour guys me, and i will try and answer one of your questions!
7x+5x=11x-15
solve to find the value of x. type the full answer in the box, using the variable and an equal sign. do not use any spaces.

Ibelieve the total for the tip could be $21.90

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!