The expression 0.08x+(x−200) models the final price of a computer with an instant rebate in a state that charges a sales tax. the tax is on the original price.
which expression represents the amount of tax that is paid on the computer?
a 0.08x−200
b 1.08x
c 0.08x
d x−200

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 .

Of four points are collinear, they are also coplanar

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?