Does anyone know what the answer please please??

How do i do this activity, is appreciated

Solve 2x − 1 = 11 for x using the change of base formula log base b of y equals log y over log b.

Sera sells t-shirts at the beach. she believes the price of a t-shirt and the number of t-shirts sold are related. she has been experimenting with different prices for the t-shirts. she has collected a data set with five pairs of data; each consists of the price of a t-shirt and the number of shirts sold. the independent variable, which will go on the x-axis, is . the dependent variable, which will go on the y-axis, is the