It costs £450 for 1 tola gold in the USA where as £400 in England. If $1= Rs 104 and £1= Rs 128 then which place has cheaper gold price and by how much rupees?

Can someone pls ! pls answer all. no explanation needed..

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

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books