Ali and Khamis are solving 4a-5b=7 for b. Is either of them correct ? Explain. PLS I'LL MARK YOU BRAINLIST DIRECTLY !!!

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

Write the equation in logarithmic form 8^x=64