Working together , 5 friends collected 40 5/8

Abus ride for a senior citizen cost $1.25. a monthly pass costs $35. write and inequality that represents the number of times a senior citizen must ride the bus for the monthly pass to be a better deal.

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Write the expression as a single natural logarithm. 2 in a - 4 in y