It’s 62.40 but i don’t know how to show my work for $52 lunch; 20% tip can someone

What is the solution of log2  (3x  -  7)  =  3? 4 5

Proportions in triangles solve for x

Anew movie is released each year for 14 years to go along with a popular book series. each movie is 2 minutes longer than the last to go along with a plot twist. the first movie is 70 minutes long. use an arithmetic series formula to determine the total length of all 14 movies