Zack bought a coat for $69.78 .he paid with a $100 bill and received $26.73 in change. how much was the sales tax? plz ill give 10 points

The level of co2 emissions, f(x), in metric tons, from the town of fairfax x years after they started recording is shown in the table below. x 2 4 6 8 10 f(x) 26,460 29,172.15 32,162.29 35,458.93 39,093.47 select the true statement.

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Simplify. 3(4+4x) (type your answer in with no spaces)