So, when I would look this problem up on the net (3x+1/5y=7), it would give me this answer -6/9, or 2/3. Could this possibly be correct? Pls help!

Asquare parking lot has 6,400 square meters what is the length in meters

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?