A laptop has a listed price of 623.95 before tax. If the sales tax rate is 9.25%, find the total cost of the laptop with sales tax included. Round your answer to the nearest cent, as necessary.

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

Give me the equations of two lines that have the same slope but are not parallel.

How many solutions does the nonlinear system of equations graphed below have?