Please solve 3^(x+3) + 3^(x+4)/3 = 162​

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

Handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony?